CVE-2020-1931
Published: 30 January 2020
A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious Configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. This issue is less stealthy and attempts to exploit the issue will throw warnings. Thanks to Damian Lukowski at credativ for reporting the issue ethically. With this bug unpatched, exploits can be injected in a number of scenarios though doing so remotely is difficult. In addition to upgrading to SA 3.4.4, we again recommend that users should only use update channels or 3rd party .cf files from trusted places.
Priority
Status
Package | Release | Status |
---|---|---|
spamassassin Launchpad, Ubuntu, Debian |
bionic |
Released
(3.4.2-0ubuntu0.18.04.3)
|
eoan |
Released
(3.4.2-1ubuntu0.19.10.2)
|
|
trusty |
Released
(3.4.2-0ubuntu0.14.04.1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Released
(3.4.4~rc1-1)
|
|
xenial |
Released
(3.4.2-0ubuntu0.16.04.3)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.1 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1931
- https://svn.apache.org/repos/asf/spamassassin/branches/3.4/build/announcements/3.4.4.txt
- https://www.openwall.com/lists/oss-security/2020/01/30/2
- https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7784
- https://ubuntu.com/security/notices/USN-4265-1
- https://ubuntu.com/security/notices/USN-4265-2
- NVD
- Launchpad
- Debian