Link Following Affecting shadow package, versions <1:4.1.1-6


0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High
NVD  high

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  • Snyk ID SNYK-DEBIAN10-SHADOW-306266
  • published 9 Dec 2008
  • disclosed 9 Dec 2008

How to fix?

Upgrade Debian:10 shadow to version 1:4.1.1-6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadow package and not the shadow package as distributed by Debian:10. See How to fix? for Debian:10 relevant fixed versions and status.

/bin/login in shadow 4.0.18.1 in Debian GNU/Linux, and probably other Linux distributions, allows local users in the utmp group to overwrite arbitrary files via a symlink attack on a temporary file referenced in a line (aka ut_line) field in a utmp entry.