Detects exploitation attempt of vulnerability described in CVE-2021-3156.

Description

Detects exploitation attempt of vulnerability described in CVE-2021-3156.

Query · wazuh

View raw source upstream ↗ Wazuh XML 
field audit.execve.a0="sudoedit$" AND field audit.execve.a1="^\\$" AND field audit.execve.a2="^\\$" AND field audit.execve.a3="^\\$" AND field audit.execve.a4="^\\$"

No license declared

socfortress/Wazuh-Rules publishes no license, and without an express grant the default is all rights reserved. The query above is synthesized from the rule rather than copied out of it, so you can see what the rule matches on; the rule as written stays upstream.

Read the full rule at Auditd/200110-auditd.xml ↗. Why this rule is treated this way.

Fires when

Wazuh evaluates a chain top-down. Every rule above this one must match on the same event before this rule is tested at all.

  1. 200111 Audit: EXECVE Messages grouped. anchor level 3
    decoded_as=auditd-execve
  2. 200140 Detects exploitation attempt of vulnerability described in CVE-2021-3156. refinement level 12 this rule
    field audit.execve.a0="sudoedit$" AND field audit.execve.a1="^\\$" AND field audit.execve.a2="^\\$" AND field audit.execve.a3="^\\$" AND field audit.execve.a4="^\\$"

Rule dependencies

Depends on

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