PostgreSQL PAM authentication modules HTTP SQL query

postgresql-pam-authentication-module (7110) The risk level is classified as HighHigh Risk


The 'pam-pgsql' authentication module is used to authenticate to PostgreSQL databases. Some 'pam-pgsql' modules could allow a remote attacker to execute arbitrary SQL statements. A remote attacker can request a specially-crafted HTTP query string containing embedded SQL statements to fake responses from the database and gain unauthorized access to the Web server.


Gain Access


For Joerg Wendland 'pam-pgsql' 0.9.2:
Upgrade to the latest version of 'pam-pgsql' (0.9.3 or later), available available from the SourceForge Web site. See References.

For FreeBSD Ports Collection (prior to 2002-01-21):
Upgrade to the latest pam-pgsql port version (0.5.2 or later), as listed in FreeBSD Inc., Security Advisory FreeBSD-SA-02:14. See References.


  • FreeBSD Security Advisory FreeBSD-SA-02:14: pam-pgsql port authentication bypass.
  • RUS-CERT Advisory 2001-09:01: Vulnerabilities in PAM and NSS modules using a PostgreSQL database.
  • Project: sysauth-pgsql.
  • BID-3317: Joerg Wendland Pam-PSQL Remote SQL Query Manipulation Vulnerability
  • BID-3318: Alessandro Gardich Pam-PSQL Remote SQL Query Manipulation Vulnerability
  • BID-3319: Leon J Breedt Pam-PGSQL Remote SQL Query Manipulation Vulnerability
  • CVE-2001-1369: Leon J Breedt pam-pgsql before 0.5.2 allows remote attackers to execute arbitrary SQL code and bypass authentication or modify user account records by injecting SQL statements into user or password fields.
  • OSVDB ID: 5410: pam-pgsql SQL Injection

Platforms Affected:

  • FreeBSD FreeBSD Ports Collection
  • pam-pgSQL pam-pgSQL 0.5.1
  • pam-pgSQL pam-pgSQL 0.5.2
  • pam_pgSQL pam_pgSQL 0.0.3
  • pam_pgSQL pam_pgSQL 0.9.2


Sep 10, 2001

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