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AUSCERT External Security Bulletin Redistribution
ESB-2001.454 -- RHSA-2001:124-04
Updated mod_auth_pgsql packages available
25 October 2001
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AusCERT Security Bulletin Summary
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Product: mod_auth_pgsql
Vendor: Red Hat
Operating System: Red Hat Linux 7.2
Platform: i386
Impact: Execute Arbitrary Code/Commands
Access Required: Remote
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Red Hat, Inc. Red Hat Security Advisory
Synopsis: Updated mod_auth_pgsql packages available
Advisory ID: RHSA-2001:124-04
Issue date: 2001-10-05
Updated on: 2001-10-23
Product: Red Hat Linux
Keywords: string injection md5 mod_auth_pgsql
Cross references:
Obsoletes:
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1. Topic:
Updated mod_auth_pgsql packages are now available for Red Hat Linux 7.2.
These updates close a vulnerability which would allow a malicious client to
cause a Web server to execute arbitrary SQL statements. A bug in the MD5
password mechanism causing valid passwords not to authenticate the user has
also been fixed.
2. Relevant releases/architectures:
Red Hat Linux 7.2 - i386
3. Problem description:
The updated mod_auth_pgsql packages close a vulnerability which would allow
a malicious client to cause a Web server to execute arbitrary SQL
statements. Several Apache authentication modules which use SQL databases
to store authentication information are vulnerable to a remote SQL code
injection attack. A bug in the MD5 password mechanism causing valid
passwords not to authenticate the user has also been fixed.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains
the
desired RPMs.
Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. 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/bugzilla for more info):
54146 - security: sql injection
6. RPMs required:
Red Hat Linux 7.2:
SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/mod_auth_pgsql-0.9.9-2.src.rpm
i386:
ftp://updates.redhat.com/7.2/en/os/i386/mod_auth_pgsql-0.9.9-2.i386.rpm
7. Verification:
MD5 sum Package Name
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5ebc2970c695950a24a044b046dc94d2 7.2/en/os/SRPMS/mod_auth_pgsql-0.9.9-2.src.rpm
30c43be9ed24fbf0e3b7e1e44ff28808 7.2/en/os/i386/mod_auth_pgsql-0.9.9-2.i386.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
http://www.redhat.com/about/contact/pgpkey.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>
8. References:
http://cert.uni-stuttgart.de/advisories/apache_auth.php
Copyright(c) 2000, 2001 Red Hat, Inc.
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