vulnerability
Debian: CVE-2017-20002: shadow -- security update
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Mar 17, 2021 | Mar 19, 2021 | Mar 25, 2021 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Mar 17, 2021
Added
Mar 19, 2021
Modified
Mar 25, 2021
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.
Solution
debian-upgrade-shadow

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