VulnerabilityModified
CVE-2021-42097
GNU Mailman before 2.1.35 may allow remote Privilege Escalation.
HIGH 8.0EPSS 1.33%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).
- CVSS 3.1
- 8.0 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.33% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- gnu/mailman · debian/debian linux
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2021/10/21/4Mailing List, Patch, Third Party Advisory
- https://bugs.launchpad.net/mailman/+bug/1947640Patch, Third Party Advisory
- https://mail.python.org/archives/list/mailman-announce%40python.org/thread/IKCO6JU755AP5G5TKMBJL6IEZQTTNPDQ/
- https://www.debian.org/security/2021/dsa-4991Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/10/21/4Mailing List, Patch, Third Party Advisory
- https://bugs.launchpad.net/mailman/+bug/1947640Patch, Third Party Advisory
- https://mail.python.org/archives/list/mailman-announce%40python.org/thread/IKCO6JU755AP5G5TKMBJL6IEZQTTNPDQ/
- https://www.debian.org/security/2021/dsa-4991Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.