squid_auth_ldap logging() format string

squidauthldap-logging-format-string (9019) The risk level is classified as HighHigh Risk


The squid_auth_ldap module is vulnerable to a format string attack. A remote attacker could supply a malicious format string in a call to the logging() function, which could allow the attacker to execute arbitrary code on the system with elevated privileges.


Gain Access


No remedy available as of September 1, 2014.


  • Blackshell Advisory # 5: Local Format String Vuln in pam_ldap and remote in squid_auth_ldap.
  • C-Note Web site: C-Note::Software.
  • BID-4679: PAM_LDAP And Squid_Auth_LDAP Logging Format String Vulnerabilities
  • CVE-2002-0735: Format string vulnerability in the logging() function in C-Note Squid LDAP authentication module (squid_auth_LDAP) 2.0.2 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code by triggering log messages.
  • OSVDB ID: 9905: Squid Proxy squid_auth_ldap logging() Format String

Platforms Affected:

  • Squid-Cache Squid 2.0.1


May 06, 2002

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