CVE-2021-42097

high

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).

References

https://mail.python.org/archives/list/[email protected]/thread/IKCO6JU755AP5G5TKMBJL6IEZQTTNPDQ/

https://bugs.launchpad.net/mailman/+bug/1947640

http://www.openwall.com/lists/oss-security/2021/10/21/4

https://www.debian.org/security/2021/dsa-4991

Details

Source: MITRE

Published: 2021-10-21

Updated: 2021-11-05

Type: CWE-352

Risk Information

CVSS v2

Base Score: 8.5

Vector: AV:N/AC:M/Au:S/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 6.8

Severity: HIGH

CVSS v3

Base Score: 8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.1

Severity: HIGH