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GLSA-200704-11 : Vixie Cron: Denial of Service

low Nessus Plugin ID 25056

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-200704-11 (Vixie Cron: Denial of Service)

 During an internal audit, Raphael Marichez of the Gentoo Linux Security Team found that Vixie Cron has weak permissions set on Gentoo, allowing for a local user to create hard links to system and users cron files, while a st_nlink check in database.c will generate a superfluous error.
 Impact :

 Depending on the partitioning scheme and the 'cron' group membership, a malicious local user can create hard links to system or users cron files that will trigger the st_link safety check and prevent the targeted cron file from being run from the next restart or database reload.
 Workaround :

 There is no known workaround at this time.

Solution

All Vixie Cron users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=sys-process/vixie-cron-4.1-r10'

See Also

https://security.gentoo.org/glsa/200704-11

Plugin Details

Severity: Low

ID: 25056

File Name: gentoo_GLSA-200704-11.nasl

Version: 1.14

Type: local

Published: 4/19/2007

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:vixie-cron, cpe:/o:gentoo:linux

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

Patch Publication Date: 4/16/2007

Vulnerability Publication Date: 4/16/2007

Reference Information

CVE: CVE-2007-1856

GLSA: 200704-11