CVE-2017-20002 | BDVDB-2026-150522 Detail

Description#

The Debian shadow package before 1:4.5-1 for Shadow incorrectly lists pts/0 and pts/1 as physical terminals in /etc/securetty. This allows local users to login as password-less users even if they are connected by non-physical means such as SSH (hence bypassing PAM's nullok_secure configuration). This notably affects environments such as virtual machines automatically generated with a default blank root password, allowing all local users to escalate privileges.

Impact#

No impact statement in the source data.

Weaknesses#

No weakness recorded in the source data.

References#

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877374
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914957
https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html

Exploit#

No public exploit known

History#

Version 12021-03-17Record published in the CVE List.
Version 22024-08-05Most recent update recorded in the CVE List.