CVE-2020-1946 - CVE House
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Status published Critical CVE-2020-1946

Apache SpamAssassin has an OS Command Injection vulnerability

Vulnerability Description

In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Apache SpamAssassin would like to thank Damian Lukowski at credativ for ethically reporting this issue.

Affected Vendor

Apache Software Foundation

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Affected Software

Apache SpamAssassin
Vulnerable Versions:
Apache SpamAssassin

Timeline

Official Publish: March 25th, 2021
Last Modified: February 13th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)