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CVE-2021-42096

Published: 21 October 2021

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.

Priority

High

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
mailman
Launchpad, Ubuntu, Debian
bionic
Released (1:2.1.26-1ubuntu0.4)
focal
Released (1:2.1.29-1ubuntu3.1)
upstream
Released (2.1.35)
xenial
Released (1:2.1.20-1ubuntu0.6+esm1)
Patches:
upstream: https://bazaar.launchpad.net/~mailman-coders/mailman/2.1/revision/1873

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N