Executive Summary

Summary
Title nss_ldap security update
Informations
Name RHSA-2006:0719 First vendor Publication 2006-11-15
Vendor RedHat Last vendor Modification 2006-11-15
Severity (Vendor) Moderate Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated nss_ldap packages that fix a security flaw are now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Problem description:

nss_ldap is a set of C library extensions that allow X.500 and LDAP directory servers to be used as primary sources for aliases, ethers, groups, hosts, networks, protocols, users, RPCs, services, and shadow passwords.

A flaw was found in the way nss_ldap handled a PasswordPolicyResponse control sent by an LDAP server. If an LDAP server responded to an authentication request with a PasswordPolicyResponse control, it was possible for an application using nss_ldap to improperly authenticate certain users. (CVE-2006-5170)

This flaw was only exploitable within applications which did not properly process nss_ldap error messages. Only xscreensaver is currently known to exhibit this behavior.

All users of nss_ldap should upgrade to these updated packages, which contain a backported patch that resolves this issue.

4. Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

207286 - CVE-2006-5170 When using LDAP for authentication, xscreensaver allows access if account locked out.

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2006-0719.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-755 Improper Handling of Exceptional Conditions

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10418
 
Oval ID: oval:org.mitre.oval:def:10418
Title: pam_ldap in nss_ldap on Red Hat Enterprise Linux 4, Fedora Core 3 and earlier, and possibly other distributions does not return an error condition when an LDAP directory server responds with a PasswordPolicyResponse control response, which causes the pam_authenticate function to return a success code even if authentication has failed, as originally reported for xscreensaver.
Description: pam_ldap in nss_ldap on Red Hat Enterprise Linux 4, Fedora Core 3 and earlier, and possibly other distributions does not return an error condition when an LDAP directory server responds with a PasswordPolicyResponse control response, which causes the pam_authenticate function to return a success code even if authentication has failed, as originally reported for xscreensaver.
Family: unix Class: vulnerability
Reference(s): CVE-2006-5170
Version: 5
Platform(s): Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1
Os 1
Os 2
Os 1
Os 2
Os 1
Os 1
Os 1

OpenVAS Exploits

Date Description
2009-10-10 Name : SLES9: Security update for pam_ldap
File : nvt/sles9p5017445.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200612-19 (pam_ldap)
File : nvt/glsa_200612_19.nasl
2008-01-17 Name : Debian Security Advisory DSA 1203-1 (libpam-ldap)
File : nvt/deb_1203_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
30189 pam_ldap PasswordPolicyResponse Authentication Bypass

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing a security update.
File : oraclelinux_ELSA-2006-0719.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_11259.nasl - Type : ACT_GATHER_INFO
2009-04-23 Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2006-0719.nasl - Type : ACT_GATHER_INFO
2007-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_pam_ldap-2196.nasl - Type : ACT_GATHER_INFO
2007-10-17 Name : The remote openSUSE host is missing a security update.
File : suse_pam_ldap-2194.nasl - Type : ACT_GATHER_INFO
2007-02-18 Name : The remote Mandrake Linux host is missing a security update.
File : mandrake_MDKSA-2006-201.nasl - Type : ACT_GATHER_INFO
2006-12-30 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200612-19.nasl - Type : ACT_GATHER_INFO
2006-11-20 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2006-0719.nasl - Type : ACT_GATHER_INFO
2006-11-06 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1203.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2014-02-17 11:50:17
  • Multiple Updates