[CLA-2001:427] Conectiva Linux Security Announcement - mod_auth_pgsql

2001-09-28T00:00:00
ID SECURITYVULNS:DOC:2058
Type securityvulns
Reporter Securityvulns
Modified 2001-09-28T00:00:00

Description

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1


CONECTIVA LINUX SECURITY ANNOUNCEMENT


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


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


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


All our advisories and generic update instructions can be viewed at http://distro.conectiva.com.br/atualizacoes/?idioma=en


subscribe: conectiva-updates-subscribe@papaleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@papaleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org

iD8DBQE7tIso42jd0JmAcZARAoNTAJ9V4zBJOZ6h1F5nV/Gi0IZzANvcmACg7h3q p1UNVsl+tuXEedblbkorwlU= =wbew -----END PGP SIGNATURE-----