GLSA-200408-08 : Cfengine: RSA Authentication Heap Corruption

critical Nessus Plugin ID 14564

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-200408-08 (Cfengine: RSA Authentication Heap Corruption)

Two vulnerabilities have been found in cfservd. One is a buffer overflow in the AuthenticationDialogue function and the other is a failure to check the proper return value of the ReceiveTransaction function.
Impact :

An attacker could use the buffer overflow to execute arbitrary code with the permissions of the user running cfservd, which is usually the root user. However, before such an attack could be mounted, the IP-based ACL would have to be bypassed. With the second vulnerability, an attacker could cause a denial of service attack.
Workaround :

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of Cfengine. (It should be noted that disabling cfservd will work around this particular problem.
However, in many cases, doing so will cripple your Cfengine setup.
Upgrading is strongly recommended.)

Solution

All Cfengine users should upgrade to the latest version:
# emerge sync # emerge -pv '>=net-misc/cfengine-2.1.8' # emerge '>=net-misc/cfengine-2.1.8'

Plugin Details

Severity: Critical

ID: 14564

File Name: gentoo_GLSA-200408-08.nasl

Version: 1.16

Type: local

Family: Gentoo Local Security Checks

Published: 8/30/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

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

Vulnerability Information

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

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

Patch Publication Date: 8/10/2004

Reference Information

CVE: CVE-2004-1701, CVE-2004-1702

GLSA: 200408-08

Detections

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