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.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Link | Tags |
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https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html | vendor advisory mailing list exploit |
https://www.mail-archive.com/bug-hurd%40gnu.org/msg32114.html |