CVE-2021-42096

low-risk
Published 2021-10-21

GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A certain csrf_token value is derived from the admin password, and may be useful in conducting a brute-force attack against that password.

Do I need to act?

-
0.32% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Mailman

Affected Vendors

Debian Gnu

References (8)

Mailing List http://www.openwall.com/lists/oss-security/2021/10/21/4
Patch https://bugs.launchpad.net/mailman/+bug/1947639
https://mail.python.org/archives/list/mailman-announce%40python.org/thread/IKCO6...
Third Party Advisory https://www.debian.org/security/2021/dsa-4991
Mailing List http://www.openwall.com/lists/oss-security/2021/10/21/4
Patch https://bugs.launchpad.net/mailman/+bug/1947639
https://mail.python.org/archives/list/mailman-announce%40python.org/thread/IKCO6...
Third Party Advisory https://www.debian.org/security/2021/dsa-4991
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 7/34 · Low