CVE-2020-1946

Advisory lineage Upstream: 0 Downstream: 14
Modified
Published: 25 Mar 2021, 09:20
Last modified:13 Feb 2025, 16:27

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
10 HIGH
v2.0 (nvd)
EPSS Score
3.41% LOW
3% probability +1.91%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Mar 2021, 09:20
Published
Vulnerability first disclosed
13 Feb 2025, 16:27
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 10AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 3.41%• Percentile: 88%

Techniques & Countermeasures

  • CWE-78•Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

    The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Affected Systems

  • apache software foundation•apache spamassassin

    ≥ Apache SpamAssassin, < 3.4.5

  • apache•spamassassin

    < 3.4.5

  • debian•debian_linux

    9.0 | 10.0

  • fedoraproject•fedora

    32 | 33 | 34

References (7)