Anomaly URL query (attempting to pass null termination).

Description

Anomaly URL query (attempting to pass null termination).

Query · wazuh

regex=""GET /\S+.php?\S+%00"

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. 31100 Access log messages grouped. anchor level 0
    Matches no fields of its own.
  2. 31550 Anomaly URL query (attempting to pass null termination). refinement level 6 this rule
    regex=""GET /\S+.php?\S+%00"

Rule dependencies

Depends on

Raw source Anomaly URL query (attempting to pass null termination). · Wazuh XML
Esc
Published by Wazuh Core Ruleset ↗, licensed under GPLv2 ↗. Reproduced here unmodified. 
<rule id="31550" level="6">
    <if_sid>31100</if_sid>
    <url>%00</url>
    <regex> "GET /\S+.php?\S+%00</regex>
    <description>Anomaly URL query (attempting to pass null termination).</description>
    <mitre>
      <id>T1555.003</id>
    </mitre>
    <group>pci_dss_6.5,pci_dss_11.4,gdpr_IV_35.7.d,nist_800_53_SA.11,nist_800_53_SI.4,tsc_CC6.6,tsc_CC7.1,tsc_CC8.1,tsc_CC6.1,tsc_CC6.8,tsc_CC7.2,tsc_CC7.3,</group>
  </rule>

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