Riskcovery

CVE-2024-20506

ClamAV Privilege Handling Escalation Vulnerability

State
Published
Severity
6.1 Medium
Published
Sep 4, 2024
Updated
Nov 3, 2025
Reserved
Nov 8, 2023

Read the record on cve.org

Description

A vulnerability in the ClamD service module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an authenticated, local attacker to corrupt critical system files.

The vulnerability is due to allowing the ClamD process to write to its log file while privileged without checking if the logfile has been replaced with a symbolic link. An attacker could exploit this vulnerability if they replace the ClamD log file with a symlink to a critical system file and then find a way to restart the ClamD process. An exploit could allow the attacker to corrupt a critical system file by appending ClamD log messages after restart.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Hcisco

Weaknesses

  • CWE-754 Improper Check for Unusual or Exceptional Conditions

Affected Products

ProductVersions
ClamAVCisco
  • 1.4.0Affected
  • 1.3.2Affected
  • 1.0.6Affected
  • 1.0.5Affected
  • 1.0.4Affected
  • 1.0.3Affected
  • 1.0.2Affected
  • 1.0.1Affected
  • 1.0.0Affected
  • 1.2.xAffected
  • 0.105.xAffected
  • 0.104.xAffected
  • 0.103.11Affected
  • 0.103.10Affected
  • 0.103.9Affected
  • 0.103.8Affected
  • 0.103.7Affected
  • 0.103.6Affected
  • 0.103.5Affected
  • 0.103.4Affected
  • 0.103.3Affected
  • 0.103.2Affected
  • 0.103.1Affected
  • 0.103.0Affected

References

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