CVE-2020-1946
Published: 31 December 2020
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.
Notes
| Author | Note |
|---|---|
| sbeattie |
command injection in configuration parsing |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
spamassassin
Launchpad, Ubuntu, Debian |
bionic |
Released
(3.4.2-0ubuntu0.18.04.5)
|
| focal |
Released
(3.4.4-1ubuntu1.1)
|
|
| groovy |
Not vulnerable
(3.4.5~pre1-3)
|
|
| trusty |
Released
(3.4.2-0ubuntu0.14.04.1+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(3.4.5,3.4.5~pre1)
|
|
| xenial |
Released
(3.4.2-0ubuntu0.16.04.5)
|
|
|
Patches:
upstream: https://svn.apache.org/viewvc/spamassassin/branches/3.4/lib/Mail/SpamAssassin/Conf/Parser.pm?r1=1864416&r2=1876381&pathrev=1876381 upstream: https://github.com/apache/spamassassin/commit/2bffc7753d234995022f1f44ace4585241165925 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |