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Conectiva Linux Security Announcement - mod_auth_pgsql

Sep 28, 2001, 17:24 (2 Talkback[s])
Date: Fri, 28 Sep 2001 11:37:29 -0300
Subject: [CLA-2001:427] Conectiva Linux Security Announcement - mod_auth_pgsql
From: secure@conectiva.com.br


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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : mod_auth_pgsql
SUMMARY   : Remote vulnerability allows an attacker to bypass authentication
DATE      : 2001-09-28 11:26:00
ID        : CLA-2001:427
RELEVANT
RELEASES  : 4.0, 4.0es, 4.1, 4.2, 5.0, prg graficos, ecommerce, 5.1, 6.0, 7.0

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DESCRIPTION
 "mod_auth_mysql" is an authentication module for apache which
 authenticates users against a PostgreSQL database.
 RUS-CERT discovered a vulnerability[1][3] in several Apache
 authentication modules which use SQL databases to retrieve user
 information. This vulnerability allows a remote attacker to change
 the query that the module sends to the SQL server and circumvent the
 authentication process.
 This vulnerability is still present in the 0.9.6 version in a
 slightly different fashion:
 
 Username: '';; select ''bla
 Password: bla
 
 The author has been notified and released version 0.9.9 on Sep 25th
 to address this problem[2].
 Additionally, this is also a bugfix update for this package, which
 wasn't linked against the PostgreSQL libraries in our previous
 releases.


SOLUTION
 It is recommended that all mod_auth_pgsql users upgrade the package.
 All versions released here, even being older, have patches to address
 this problem. The update for the 0.8 version also contains the
 snprintf() patches from Erik Rossen.
 
 IMPORTANT: it is necessary to restart the Apache web server after
 updating these packages.
 
 
 REFERENCES
 1. http://cert.uni-stuttgart.de/advisories/apache_auth.php
 2. http://www.giuseppetanzilli.it/mod_auth_pgsql/
 3. http://www.securityfocus.com/bid/3251


DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/4.0/SRPMS/mod_auth_pgsql-0.8-4U40_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.0/i386/mod_auth_pgsql-0.8-4U40_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/4.0es/SRPMS/mod_auth_pgsql-0.8-4U40_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.0es/i386/mod_auth_pgsql-0.8-4U40_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/4.1/SRPMS/mod_auth_pgsql-0.8-4U41_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.1/i386/mod_auth_pgsql-0.8-4U41_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/4.2/SRPMS/mod_auth_pgsql-0.8-4U42_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.2/i386/mod_auth_pgsql-0.8-4U42_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/mod_auth_pgsql-0.8-4U50_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/mod_auth_pgsql-0.8-4U50_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/mod_auth_pgsql-0.8-4U51_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/mod_auth_pgsql-0.8-4U51_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/mod_auth_pgsql-0.8-4U60_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/mod_auth_pgsql-0.8-4U60_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/mod_auth_pgsql-0.9.6-1U70_2cl.src.rpm
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/mod_auth_pgsql-0.9.6-1U70_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/SRPMS/mod_auth_pgsql-0.8-4U50_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/mod_auth_pgsql-0.8-4U50_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/SRPMS/mod_auth_pgsql-0.8-4U50_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/mod_auth_pgsql-0.8-4U50_3cl.i386.rpm


ADDITIONAL INSTRUCTIONS
 Users of Conectiva Linux version 6.0 or higher may use apt to perform 
 upgrades of RPM packages:
 - add the following line to /etc/apt/sources.list if it is not there yet
   (you may also use linuxconf to do this):

 rpm [cncbr] ftp://atualizacoes.conectiva.com.br 6.0/conectiva updates

(replace 6.0 with the correct version number if you are not running CL6.0)

 - run:                 apt-get update
 - after that, execute: apt-get upgrade

 Detailed instructions reagarding the use of apt and upgrade examples 
 can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en


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All packages are signed with Conectiva's GPG key. The key and instructions
on how to import it can be found at 
http://distro.conectiva.com.br/seguranca/chave/?idioma=en
Instructions on how to check the signatures of the RPM packages can be
found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en
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All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en

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