GLSA-200411-09 : shadow: Unauthorized modification of account information

medium Nessus Plugin ID 15634

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200411-09 (shadow: Unauthorized modification of account information)

Martin Schulze reported a flaw in the passwd_check() function in 'libmisc/pwdcheck.c' which is used by chfn and chsh.
Impact :

A logged-in local user with an expired password may be able to use chfn and chsh to change his standard shell or GECOS information (full name, phone number...) without being required to change his password.
Workaround :

There is no known workaround at this time.

Solution

All shadow users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=sys-apps/shadow-4.0.5-r1'

See Also

http://ftp.pld.org.pl/software/shadow/NEWS

https://security.gentoo.org/glsa/200411-09

Plugin Details

Severity: Medium

ID: 15634

File Name: gentoo_GLSA-200411-09.nasl

Version: 1.18

Type: local

Published: 11/5/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:shadow, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 11/4/2004

Vulnerability Publication Date: 10/27/2004

Reference Information

CVE: CVE-2004-1001

GLSA: 200411-09