CVE-2024-20328CWE-78

ClamAV VirusEvent File Processing Command Injection Vulnerability

Medium · published March 1, 2024

Patch now

High probability of exploitation

CVSS calls it medium at 5.3. It sits in the 99.7th percentile for exploit probability.

CVSS v3.1
5.3
EPSS
85%
Percentile
99.7
In the wild
Unconfirmed
What it is

A vulnerability in the VirusEvent feature of ClamAV could allow a local attacker to inject arbitrary commands with the privileges of the application service account.The vulnerability is due to unsafe handling of file names. A local attacker could exploit this vulnerability by supplying a file name containing command-line sequences. When processed on a system using configuration options for the VirusEvent feature, the attacker could cause the application to execute arbitrary commands.

ClamAV has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.84841 · 99.7th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2024-03-01T20:48Z
EPSS history
Timeline
  • 01 MAR 20:48Z
    ClamAV VirusEvent File Processing Command Injection Vulnerability
    cvelistv5