Published:
12 October 1999
Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-1999.155 -- RHSA-1999:040
New PAM packages available
13 October 1999
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Red Hat, Inc. has released the following advisory concerning a
vulnerability in the PAM (Pluggable Authentication Modules) packages
shipped with Red Hat Linux 6.1/Intel. Under certain network configurations,
the PAM packages may allow access to locked NIS accounts.
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Red Hat, Inc. Security Advisory
Synopsis: New PAM packages available
Advisory ID: RHSA-1999:040
Issue date: 10/13/1999
Updated on: 10/13/1999
Keywords: pam security login NIS server
Cross references: N/A
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1. Topic:
Under some network configurations PAM (Pluggable Authentication Modules)
will fail to lock access to disabled NIS accounts.
2. Problem description:
The PAM packages shipped with Red Hat Linux 6.1/Intel may allow access to
locked NIS accounts on certain network configurations. If you have a Red Hat
Linux 6.1 workstation performing authentication against a NIS server then
you are at risk. Red Hat recommends that you upgrade the PAM packages on
all Red Hat Linux 6.1 workstations to the versions announced in this
advisory.
Previous versions of Red Hat Linux are not affected by this problem.
3. Bug IDs fixed (http://developer.redhat.com/bugzilla for more info):
4. Relevant releases/architectures:
Red Hat Linux 6.1 for i386
5. Obsoleted by:
N/A
6. Conflicts with:
N/A
7. RPMs required:
ftp://updates.redhat.com/6.1/i386/pam-0.68-8.i386.rpm
ftp://updates.redhat.com/6.1/SRPMS/pam-0.68-8.src.rpm
8. Solution:
For each RPM for your particular architecture, run:
rpm -Uvh <filename>
where filename is the name of the RPM.
9. Verification:
MD5 sum Package Name
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9fd42c57d02ac039093b6f94132eee0e SRPMS/pam-0.68-8.src.rpm
e8d5b9edf5dc9998ee19d91b7620f2ad i386/pam-0.68-8.i386.rpm
These packages are GPG signed by Red Hat Inc. for security. Our key
is available at:
http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm --checksig <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nogpg <filename>
10. References:
Cristian
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Cristian Gafton -- gafton@redhat.com -- Red Hat, Inc.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"How could this be a problem in a country where we have Intel and
Microsoft?" --Al Gore on Y2K
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This security bulletin is provided as a service to AusCERT's members. As
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