""ET EXPLOIT Nagios XI OS Command Injection (CVE-2021-25296)""

SID: 2034992

Revision: 1

Class Type: attempted-admin

Metadata: attack_target Server, created_at 2022_01_27, cve CVE_2021_25296, deployment Perimeter, deployment Internal, signature_severity Major, tag Exploit, updated_at 2022_01_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

• cve

• 2021-25296

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: [$HOME_NET,$HTTP_SERVERS]

Destination Port: any

Flow: established,to_server

Contents:

• Value: "GET"

• Value: "nagiosxi/config/monitoringwizard.php?"

• Value: "plugin_output_len="

Within:

PCRE: "/plugin_output_len=[0-9]{1,10}\x3b/U"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_uri

source