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.
References
| Link | Resource |
|---|---|
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877374 | Mailing List Vendor Advisory |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914957 | Exploit Mailing List Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html | Mailing List Vendor Advisory |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877374 | Mailing List Vendor Advisory |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914957 | Exploit Mailing List Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html | Mailing List Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
21 Nov 2024, 03:22
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877374 - Mailing List, Vendor Advisory | |
| References | () https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914957 - Exploit, Mailing List, Vendor Advisory | |
| References | () https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html - Mailing List, Vendor Advisory |
07 Jun 2021, 14:58
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:debian:shadow:4.4:*:*:*:*:*:*:* |
Information
Published : 2021-03-17 06:15
Updated : 2024-11-21 03:22
NVD link : CVE-2017-20002
Mitre link : CVE-2017-20002
CVE.ORG link : CVE-2017-20002
JSON object : View
Products Affected
debian
- debian_linux
- shadow
CWE
CWE-269
Improper Privilege Management