""ET EXPLOIT Jitsi Meet Plugin XSS Attempt (CVE-2021-26812)""

SID: 2033602

Revision: 1

Class Type: attempted-user

Metadata: attack_target Server, created_at 2021_07_28, cve CVE_2021_26812, deployment Perimeter, deployment Internal, signature_severity Major, tag Exploit, updated_at 2021_07_28, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: [$HOME_NET,$HTTP_SERVERS]

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "/mod/jitsi/sessionpriv.php?avatar="

  • Value: "&nom="

Within:

PCRE:

Special Options:

  • nocase

  • http_uri

  • nocase

  • http_uri

source