VDB
CVE-2017-20002
CVE-2017-20002
REJECTED
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.
EPSS 0.05% · 16.6th percentile
Risk Scores
EPSS Score
0.05%
16.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | shadow | 0, 1:4.2-3.2ubuntu4, * |
| Ubuntu:16.04:LTS | shadow | *, *, * |
Exploit Intelligence
Timeline
- Mar 17, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2017-20002 third-party-advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877374 third-party-advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914957 third-party-advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2017-20002 third-party-advisory