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RHEL 5 / 6 : mod_nss (RHSA-2013:1779)

medium Nessus Plugin ID 71190

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An updated mod_nss package that fixes one security issue is now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The mod_nss module provides strong cryptography for the Apache HTTP Server via the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, using the Network Security Services (NSS) security library.

A flaw was found in the way mod_nss handled the NSSVerifyClient setting for the per-directory context. When configured to not require a client certificate for the initial connection and only require it for a specific directory, mod_nss failed to enforce this requirement and allowed a client to access the directory when no valid client certificate was provided. (CVE-2013-4566)

Red Hat would like to thank Albert Smith of OUSD(AT&L) for reporting this issue.

All mod_nss users should upgrade to this updated package, which contains a backported patch to correct this issue. The httpd service must be restarted for this update to take effect.

Solution

Update the affected mod_nss and / or mod_nss-debuginfo packages.

See Also

https://access.redhat.com/errata/RHSA-2013:1779

https://access.redhat.com/security/cve/cve-2013-4566

Plugin Details

Severity: Medium

ID: 71190

File Name: redhat-RHSA-2013-1779.nasl

Version: 1.16

Type: local

Agent: unix

Published: 12/4/2013

Updated: 1/14/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:mod_nss, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:mod_nss-debuginfo, cpe:/o:redhat:enterprise_linux:6.5

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 12/3/2013

Vulnerability Publication Date: 12/12/2013

Reference Information

CVE: CVE-2013-4566

RHSA: 2013:1779