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Test ID:1.3.6.1.4.1.25623.1.0.58989
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2007:0737
Summary:NOSUMMARY
Description:Description:

The remote host is missing updates announced in
advisory RHSA-2007:0737.

Pluggable Authentication Modules (PAM) provide a system whereby
administrators can set up authentication policies without having to
recompile programs that handle authentication.

A flaw was found in the way pam_console set console device permissions. It
was possible for various console devices to retain ownership of the console
user after logging out, possibly leaking information to another local user.
(CVE-2007-1716)

A flaw was found in the way the PAM library wrote account names to the
audit subsystem. An attacker could inject strings containing parts of audit
messages, which could possibly mislead or confuse audit log parsing tools.
(CVE-2007-3102)

As well, these updated packages fix the following bugs:

* the pam_xauth module, which is used for copying the X11 authentication
cookie, did not reset the XAUTHORITY variable in certain circumstances,
causing unnecessary delays when using su command.

* when calculating password similarity, pam_cracklib disregarded changes
to the last character in passwords when difok=x (where x is the
number of characters required to change) was configured in
/etc/pam.d/system-auth. This resulted in password changes that should
have been successful to fail with the following error:

BAD PASSWORD: is too similar to the old one

This issue has been resolved in these updated packages.

* the pam_limits module, which provides setting up system resources limits
for user sessions, reset the nice priority of the user session to 0 if it
was not configured otherwise in the /etc/security/limits.conf
configuration file.

These updated packages add the following enhancement:

* a new PAM module, pam_tally2, which allows accounts to be locked after a
maximum number of failed log in attempts.

All users of PAM should upgrade to these updated packages, which resolve
these issues and add this enhancement.

Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

http://rhn.redhat.com/errata/RHSA-2007-0737.html
http://www.redhat.com/security/updates/classification/#moderate

Risk factor : Medium

CVSS Score:
4.3

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2007-1716
http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html
http://security.gentoo.org/glsa/glsa-200711-23.xml
http://osvdb.org/37271
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11483
http://www.redhat.com/support/errata/RHSA-2007-0465.html
http://www.redhat.com/support/errata/RHSA-2007-0555.html
http://www.redhat.com/support/errata/RHSA-2007-0737.html
http://secunia.com/advisories/25631
http://secunia.com/advisories/25894
http://secunia.com/advisories/26909
http://secunia.com/advisories/27590
http://secunia.com/advisories/27706
http://secunia.com/advisories/28319
SGI Security Advisory: 20070602-01-P
ftp://patches.sgi.com/support/free/security/advisories/20070602-01-P.asc
http://www.vupen.com/english/advisories/2007/3229
Common Vulnerability Exposure (CVE) ID: CVE-2007-3102
BugTraq ID: 26097
http://www.securityfocus.com/bid/26097
https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00214.html
https://bugzilla.redhat.com/show_bug.cgi?id=248059
http://osvdb.org/39214
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11124
http://www.redhat.com/support/errata/RHSA-2007-0540.html
http://www.redhat.com/support/errata/RHSA-2007-0703.html
http://secunia.com/advisories/27235
http://secunia.com/advisories/27588
http://secunia.com/advisories/28320
CopyrightCopyright (c) 2007 E-Soft Inc. http://www.securityspace.com

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