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Cisco Meraki MX

Overview

Cisco Meraki MX is a multifunctional security and SD-WAN enterprise appliance with a wide set of capabilities.

The following Sekoia.io built-in rules match the intake Cisco Meraki MX. This documentation is updated automatically and is based solely on the fields used by the intake which are checked against our rules. This means that some rules will be listed but might not be relevant with the intake.

SEKOIA.IO x Cisco Meraki MX on ATT&CK Navigator

CVE-2018-11776 Apache Struts2

Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.

  • Effort: intermediate
CVE-2019-0604 SharePoint

Detects the exploitation of the SharePoint vulnerability (CVE-2019-0604)

  • Effort: advanced
CVE-2020-0688 Microsoft Exchange Server Exploit

Detects the exploitation of CVE-2020-0688. The POC exploit a .NET serialization vulnerability in the Exchange Control Panel (ECP) web page. The vulnerability is due to Microsoft Exchange Server not randomizing the keys on a per-installation basis resulting in them using the same validationKey and decryptionKey values. With knowledge of these, values an attacker can craft a special viewstate to use an OS command to be executed by NT_AUTHORITY\SYSTEM using .NET deserialization. To exploit this vulnerability, an attacker needs to leverage the credentials of an account it had already compromised to authenticate to OWA.

  • Effort: elementary
CVE-2020-1147 SharePoint

Detection of SharePoint vulnerability CVE-2020-1147

  • Effort: advanced
CVE-2020-14882 Oracle WebLogic Server

Detects the exploitation of the Oracle WebLogic Server vulnerability (CVE-2020-16952)

  • Effort: advanced
CVE-2020-17530 Apache Struts RCE

Detects the exploitation of the Apache Struts vulnerability (CVE-2020-17530).

  • Effort: intermediate
CVE-2021-20021 SonicWall Unauthenticated Administrator Access

Detects the exploitation of SonicWall Unauthenticated Admin Access.

  • Effort: advanced
CVE-2021-20023 SonicWall Arbitrary File Read

Detects Arbitrary File Read, which can be used with other vulnerabilities as a mean to obtain outputs generated by attackers, or sensitive data.

  • Effort: advanced
CVE-2021-21972 VMware vCenter

The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2). POST request on the following PATH "/ui/vropspluginui/rest/services/uploadova". If in response body (500) the words it has "uploadFile", that means the vCenter is available to accept files via POST without any restrictions.

  • Effort: intermediate
CVE-2021-21985 VMware vCenter

The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.0 before 7.0 U2b, 6.7 before 6.7 U3n and 6.5 before 6.5 U3p) and VMware Cloud Foundation (4.x before 4.2.1 and 3.x before 3.10.2.1).

  • Effort: advanced
CVE-2021-22123 Fortinet FortiWeb OS Command Injection

Detects Fortinet FortiWeb OS Command Injection (August 2021) vulnerability exploitation attempt. A remote, authenticated attacker can execute arbitrary commands on the system hosting a vulnerable FortiWeb WAF by sending a POST request with the command in the name field. At the time of writing this rule, it would appear that the request would respond in code 500 for a successful exploitation attempt.

  • Effort: advanced
CVE-2021-22893 Pulse Connect Secure RCE Vulnerability

Detects potential exploitation of the authentication by-pass vulnerability that can allow an unauthenticated user to perform remote arbitrary file execution on the Pulse Connect Secure gateway. It is highly recommended to apply the Pulse Secure mitigations and seach for indicators of compromise on affected servers if you are in doubt over the integrity of your Pulse Connect Secure product.

  • Effort: intermediate
CVE-2021-26855 Exchange SSRF

Detects the exploitation of ProyxLogon vulerability on Exchange servers.

  • Effort: advanced
Detect requests to Konni C2 servers

This rule detects requests to Konni C2 servers. These patterns come from an analysis done in 2022, September.

  • Effort: elementary
Download Files From Suspicious TLDs

Detects download of certain file types from hosts in suspicious TLDs

  • Effort: master
FoggyWeb HTTP Default GET/POST Requests

Detects GET or POST request pattern observed within the first FoggyWeb campaign detected by Microsoft.

  • Effort: advanced
Koadic MSHTML Command

Detects Koadic payload using MSHTML module

  • Effort: intermediate
Nimbo-C2 User Agent

Nimbo-C2 Uses an unusual User-Agent format in its implants.

  • Effort: intermediate
Possible Malicious File Double Extension

Detects request to potential malicious file with double extension

  • Effort: elementary
Potential Bazar Loader User-Agents

Detects potential Bazar loader communications through the user-agent

  • Effort: elementary
Potential Lemon Duck User-Agent

Detects LemonDuck user agent. The format used two sets of alphabetical characters separated by dashes, for example "User-Agent: Lemon-Duck-[A-Z]-[A-Z]".

  • Effort: elementary
Privilege Escalation Awesome Scripts (PEAS)

Detect PEAS privileges escalation scripts and binaries

  • Effort: elementary
ProxyShell Exchange Suspicious Paths

Detects suspicious calls to Exchange resources, in locations related to webshells observed in campaigns using this vulnerability.

  • Effort: elementary
SEKOIA.IO Intelligence Feed

Detect threats based on indicators of compromise (IOCs) collected by SEKOIA's Threat and Detection Research team.

  • Effort: elementary
Suspicious URI Used In A Lazarus Campaign

Detects suspicious requests to a specific URI, usually on an .asp page. The website is often compromised.

  • Effort: intermediate

Event Categories

The following table lists the data source offered by this integration.

Data Source Description
Network device logs Meraki MX Security Appliance records traffic events flowing through
Web logs Meraki MX Security Appliance records traffic events flowing through

In details, the following table denotes the type of events produced by this integration.

Name Values
Kind event
Category network
Type denied, info

Event Samples

Find below few samples of events and how they are normalized by Sekoia.io.

{
    "message": "1673516966.834663913 FW_MX_01 events dhcp lease of ip 1.2.3.4 from mx mac AA:BB:CC:DD:EE:FF for client mac 01:02:03:04:05:06 from router 5.6.7.8 on subnet 255.255.255.0 with dns 9.10.11.12",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-12T09:49:26.834664Z",
    "cisco_meraki": {
        "event_subtype": "dhcp_offer"
    },
    "destination": {
        "mac": "AA:BB:CC:DD:EE:FF"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "mac": "01:02:03:04:05:06"
    }
}
{
    "message": "1673541902.311547724 FW_MX_01 events dhcp no offers for mac AA:BB:CC:DD:EE:FF",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-12T16:45:02.311548Z",
    "cisco_meraki": {
        "event_subtype": "dhcp_no_offer"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ]
    },
    "source": {
        "mac": "AA:BB:CC:DD:EE:FF"
    }
}
{
    "message": "1673596662.226844514 FW_MX_01 events type=anyconnect_vpn_auth_failure msg= 'RADIUS[373] Server IP=1.2.3.4 Server port=1812 Peer IP=5.6.7.8 Peer port=56735: Authentication request rejected. '",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "outcome": "failure",
        "type": [
            "denied"
        ]
    },
    "@timestamp": "2023-01-13T07:57:42.226845Z",
    "action": {
        "outcome": "failure",
        "outcome_reason": "Authentication request rejected. "
    },
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_auth_failure"
    },
    "destination": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 1812
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 56735
    }
}
{
    "message": "1673596676.426899545 FW_MX_01 events type=anyconnect_vpn_auth_success msg= 'RADIUS[374] Server IP=1.2.3.4 Server port=1812 Peer IP=5.6.7.8 Peer port=56735 User=john.doe: Authentication request accepted. '",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "outcome": "success",
        "type": [
            "allowed"
        ]
    },
    "@timestamp": "2023-01-13T07:57:56.426899Z",
    "action": {
        "outcome": "success",
        "outcome_reason": "Authentication request accepted. "
    },
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_auth_success"
    },
    "destination": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 1812
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ],
        "user": [
            "john.doe"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 56735
    },
    "user": {
        "name": "john.doe"
    }
}
{
    "message": "1673614753.814828766 FW_MX_01 events anyconnect_vpn_connect user id 'john.doe@sekoia.io' local ip 1.2.3.4 reconnected from 5.6.7.8",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-13T12:59:13.814829Z",
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_connect"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ],
        "user": [
            "john.doe"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "nat": {
            "ip": "1.2.3.4"
        }
    },
    "user": {
        "domain": "sekoia.io",
        "name": "john.doe"
    }
}
{
    "message": "1673614753.814828766 FW_MX_01 events anyconnect_vpn_connect user id 'john.doe@sekoia.io' local ip 1.2.3.4 connected from 5.6.7.8",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-13T12:59:13.814829Z",
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_connect"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ],
        "user": [
            "john.doe"
        ]
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "nat": {
            "ip": "1.2.3.4"
        }
    },
    "user": {
        "domain": "sekoia.io",
        "name": "john.doe"
    }
}
{
    "message": "1673516936.233050742 FW_MX_01 events type=anyconnect_vpn_connection_success msg= 'Server IP=1.2.3.4 Server port=443 Prot[TCP] Peer IP=5.6.7.8 Peer port=55760 conn_id[55356] Connection closed. '",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-12T09:48:56.233051Z",
    "cisco_meraki": {
        "event_subtype": "anyconnect_vpn_connection_success"
    },
    "destination": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 443
    },
    "network": {
        "protocol": "TCP"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "server": {
        "port": 443
    },
    "source": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 55760
    }
}
{
    "message": "1673614757.517501781 FW_MX_01 events type=anyconnect_vpn_session_manager msg= 'Sess-ID[289] Peer IP=1.2.3.4 User[john.doe@sekoia.io]: Successfully added DTLS tunnel[289.4] '",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-13T12:59:17.517502Z",
    "cisco_meraki": {
        "end_of_message": "Successfully added DTLS tunnel[289.4] ",
        "event_subtype": "anyconnect_vpn_session_manager"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4"
        ],
        "user": [
            "john.doe"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4"
    },
    "user": {
        "domain": "sekoia.io",
        "name": "john.doe"
    }
}
{
    "message": "1673541348.531136002 FW_MX_01 events content_filtering_block url='https://docs.sekoia.io/...' server='1.2.3.4:443' client_mac='AA:BB:CC:DD:EE:FF'",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "events",
        "kind": "event",
        "outcome": "block",
        "type": [
            "denied"
        ]
    },
    "@timestamp": "2023-01-12T16:35:48.531136Z",
    "action": {
        "outcome": "block"
    },
    "cisco_meraki": {
        "event_subtype": "content_filtering_block"
    },
    "destination": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 443
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4"
        ]
    },
    "source": {
        "mac": "AA:BB:CC:DD:EE:FF"
    },
    "url": {
        "domain": "docs.sekoia.io",
        "original": "https://docs.sekoia.io/...",
        "path": "/...",
        "port": 443,
        "registered_domain": "sekoia.io",
        "scheme": "https",
        "subdomain": "docs",
        "top_level_domain": "io"
    }
}
{
    "message": "1673277220.253011885 FW_MX_01 firewall src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "firewall",
        "kind": "event",
        "outcome": "allow",
        "type": [
            "allowed"
        ]
    },
    "@timestamp": "2023-01-09T15:13:40.253012Z",
    "action": {
        "outcome": "allow"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 443
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 39247
    }
}
{
    "message": "1673277220.253011885 FW_MX_01 firewall allow src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "firewall",
        "kind": "event",
        "outcome": "allow",
        "type": [
            "allowed"
        ]
    },
    "@timestamp": "2023-01-09T15:13:40.253012Z",
    "action": {
        "outcome": "allow"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 443
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 39247
    }
}
{
    "message": "1673277244.954105815 FW_MX_01 firewall src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543 pattern: 1 all",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "firewall",
        "kind": "event",
        "outcome": "deny",
        "type": [
            "denied"
        ]
    },
    "@timestamp": "2023-01-09T15:14:04.954106Z",
    "action": {
        "outcome": "deny"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 543
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 42644
    }
}
{
    "message": "1673277244.954105815 FW_MX_01 firewall deny src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "firewall",
        "kind": "event",
        "outcome": "deny",
        "type": [
            "denied"
        ]
    },
    "@timestamp": "2023-01-09T15:14:04.954106Z",
    "action": {
        "outcome": "deny"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 543
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 42644
    }
}
{
    "message": "1673277220.253011885 FW_MX_01 flows src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "flows",
        "kind": "event",
        "outcome": "allow",
        "type": [
            "allowed"
        ]
    },
    "@timestamp": "2023-01-09T15:13:40.253012Z",
    "action": {
        "outcome": "allow"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 443
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 39247
    }
}
{
    "message": "1673277220.253011885 FW_MX_01 flows allow src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=39247 dport=443",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "flows",
        "kind": "event",
        "outcome": "allow",
        "type": [
            "allowed"
        ]
    },
    "@timestamp": "2023-01-09T15:13:40.253012Z",
    "action": {
        "outcome": "allow"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 443
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 39247
    }
}
{
    "message": "1673277220.253011885 FW_MX_01 flows src=fe80:110:8897:efab:9202:b3ff:fe1e:8329 dst=fe80:110:8897:efab:9202:b3ff:fe1e:8330 protocol=tcp sport=39247 dport=443 pattern: 0 (tcp || udp) && dst port 443",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "flows",
        "kind": "event",
        "outcome": "allow",
        "type": [
            "allowed"
        ]
    },
    "@timestamp": "2023-01-09T15:13:40.253012Z",
    "action": {
        "outcome": "allow"
    },
    "destination": {
        "address": "fe80:110:8897:efab:9202:b3ff:fe1e:8330",
        "ip": "fe80:110:8897:efab:9202:b3ff:fe1e:8330",
        "port": 443
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
            "fe80:110:8897:efab:9202:b3ff:fe1e:8330"
        ]
    },
    "source": {
        "address": "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
        "ip": "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
        "port": 39247
    }
}
{
    "message": "1673277244.954105815 FW_MX_01 flows src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543 pattern: 1 all",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "flows",
        "kind": "event",
        "outcome": "deny",
        "type": [
            "denied"
        ]
    },
    "@timestamp": "2023-01-09T15:14:04.954106Z",
    "action": {
        "outcome": "deny"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 543
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 42644
    }
}
{
    "message": "1673277244.954105815 FW_MX_01 flows deny src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=42644 dport=543",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "flows",
        "kind": "event",
        "outcome": "deny",
        "type": [
            "denied"
        ]
    },
    "@timestamp": "2023-01-09T15:14:04.954106Z",
    "action": {
        "outcome": "deny"
    },
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 543
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 42644
    }
}
{
    "message": "1673277245.252432409 FW_MX_01 ip_flow_end src=1.2.3.4 dst=5.6.7.8 protocol=udp sport=56391 dport=53 translated_dst_ip=9.10.11.12 translated_port=53",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "ip_flow_end",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-09T15:14:05.252432Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "nat": {
            "ip": "9.10.11.12",
            "port": 53
        },
        "port": 53
    },
    "network": {
        "protocol": "udp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8",
            "9.10.11.12"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 56391
    }
}
{
    "message": "1673277245.262063982 FW_MX_01 ip_flow_start src=1.2.3.4 dst=5.6.7.8 protocol=tcp sport=64365 dport=443 translated_src_ip=9.10.11.12 translated_port=64365",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "ip_flow_start",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-09T15:14:05.262064Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 443
    },
    "network": {
        "protocol": "tcp"
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8",
            "9.10.11.12"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "nat": {
            "ip": "9.10.11.12",
            "port": 64365
        },
        "port": 64365
    }
}
{
    "message": "1673277245.257656306 FW_MX_01 urls src=1.2.3.4:51960 dst=5.6.7.8:443 mac=AA:BB:CC:DD:EE:FF request: UNKNOWN https://www.google.com/...",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "urls",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-09T15:14:05.257656Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 443
    },
    "http": {
        "request": {
            "method": "UNKNOWN"
        }
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 51960
    },
    "url": {
        "domain": "www.google.com",
        "original": "https://www.google.com/...",
        "path": "/...",
        "port": 443,
        "registered_domain": "google.com",
        "scheme": "https",
        "subdomain": "www",
        "top_level_domain": "com"
    }
}
{
    "message": "1673277244.773622789 FW_MX_01 urls src=1.2.3.4:64194 dst=5.6.7.8:80 mac=AA:BB:CC:DD:EE:FF request: GET http://www.msftconnecttest.com/connecttest.txt",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "urls",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-09T15:14:04.773623Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 80
    },
    "http": {
        "request": {
            "method": "GET"
        }
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 64194
    },
    "url": {
        "domain": "www.msftconnecttest.com",
        "original": "http://www.msftconnecttest.com/connecttest.txt",
        "path": "/connecttest.txt",
        "port": 80,
        "registered_domain": "msftconnecttest.com",
        "scheme": "http",
        "subdomain": "www",
        "top_level_domain": "com"
    }
}
{
    "message": "1673277244.416181683 FW_MX_01 urls src=1.2.3.4:55566 dst=5.6.7.8:80 mac=AA:BB:CC:DD:EE:FF agent='Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36' request: GET http://docs.sekoia.io/xdr/features/collect/integrations/network/cisco_meraki/",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "urls",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-09T15:14:04.416182Z",
    "destination": {
        "address": "5.6.7.8",
        "ip": "5.6.7.8",
        "port": 80
    },
    "http": {
        "request": {
            "method": "GET"
        }
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "1.2.3.4",
            "5.6.7.8"
        ]
    },
    "source": {
        "address": "1.2.3.4",
        "ip": "1.2.3.4",
        "port": 55566
    },
    "url": {
        "domain": "docs.sekoia.io",
        "original": "http://docs.sekoia.io/xdr/features/collect/integrations/network/cisco_meraki/",
        "path": "/xdr/features/collect/integrations/network/cisco_meraki/",
        "port": 80,
        "registered_domain": "sekoia.io",
        "scheme": "http",
        "subdomain": "docs",
        "top_level_domain": "io"
    },
    "user_agent": {
        "device": {
            "name": "Mac"
        },
        "name": "Chrome",
        "original": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36",
        "os": {
            "name": "Mac OS X",
            "version": "10.15.7"
        },
        "version": "108.0.0"
    }
}
{
    "message": "1673277244.773622789 FW_MX_01 urls src=fe80:110:8897:efab:9202:b3ff:fe1e:8329:64194 dst=fe80:110:8897:efab:9202:b3ff:fe1e:8330:80 mac=AA:BB:CC:DD:EE:FF request: GET http://www.msftconnecttest.com/connecttest.txt",
    "event": {
        "category": [
            "network"
        ],
        "dataset": "urls",
        "kind": "event",
        "type": [
            "info"
        ]
    },
    "@timestamp": "2023-01-09T15:14:04.773623Z",
    "destination": {
        "address": "fe80:110:8897:efab:9202:b3ff:fe1e:8330",
        "ip": "fe80:110:8897:efab:9202:b3ff:fe1e:8330",
        "port": 80
    },
    "http": {
        "request": {
            "method": "GET"
        }
    },
    "observer": {
        "hostname": "FW_MX_01"
    },
    "related": {
        "hosts": [
            "FW_MX_01"
        ],
        "ip": [
            "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
            "fe80:110:8897:efab:9202:b3ff:fe1e:8330"
        ]
    },
    "source": {
        "address": "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
        "ip": "fe80:110:8897:efab:9202:b3ff:fe1e:8329",
        "port": 64194
    },
    "url": {
        "domain": "www.msftconnecttest.com",
        "original": "http://www.msftconnecttest.com/connecttest.txt",
        "path": "/connecttest.txt",
        "port": 80,
        "registered_domain": "msftconnecttest.com",
        "scheme": "http",
        "subdomain": "www",
        "top_level_domain": "com"
    }
}

Extracted Fields

The following table lists the fields that are extracted, normalized under the ECS format, analyzed and indexed by the parser. It should be noted that infered fields are not listed.

Name Type Description
@timestamp date Date/time when the event originated.
cisco_meraki.end_of_message keyword Cisco Meraki end of message for some logs.
cisco_meraki.event_subtype keyword Cisco Meraki event subtype set in logs.
destination.ip ip IP address of the destination.
destination.mac keyword MAC address of the destination.
destination.nat.ip ip Destination NAT ip
destination.nat.port long Destination NAT Port
destination.port long Port of the destination.
event.category keyword Event category. The second categorization field in the hierarchy.
event.dataset keyword Name of the dataset.
event.kind keyword The kind of the event. The highest categorization field in the hierarchy.
event.type keyword Event type. The third categorization field in the hierarchy.
http.request.method keyword HTTP request method.
network.protocol keyword Application protocol name.
observer.hostname keyword Hostname of the observer.
server.port long Port of the server.
source.ip ip IP address of the source.
source.mac keyword MAC address of the source.
source.nat.ip ip Source NAT ip
source.nat.port long Source NAT port
source.port long Port of the source.
url.original wildcard Unmodified original url as seen in the event source.
user.domain keyword Name of the directory the user is a member of.
user.name keyword Short name or login of the user.
user_agent.original keyword Unparsed user_agent string.

Configure

Prerequisites

An internal log concentrator is required to collect and forward events to Sekoia.io.

Enable Syslog forwarding

Log on your Cisco Meraki MX appliance and follow this guide to enable syslog forwarding.

Create the intake

Go to the intake page and create a new intake from the format Cisco Meraki MX.

Forward logs to Sekoia.io

Please consult the Syslog Forwarding documentation to forward these logs to Sekoia.io.

Further Readings