Description
An issue was discovered in GNU Hurd before 0.9 20210404-9. The use of an authentication protocol in the proc server is vulnerable to man-in-the-middle attacks, which can be exploited for local privilege escalation to get full root access.
References (2)
Core 2
Core References
Exploit, Mailing List, Vendor Advisory x_refsource_misc
https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html
Mailing List x_refsource_misc
https://www.mail-archive.com/bug-hurd%40gnu.org/msg32114.html
Scores
CVSS v3
7.0
EPSS
0.0003
EPSS Percentile
8.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-287
Status
published
Products (1)
gnu/hurd
< 0.9.20210404-9
Published
Nov 07, 2021
Tracked Since
Feb 18, 2026