Squid Web Proxy Cache hostname information disclosure

squid-hostname-information-disclosure (18406) The risk level is classified as MediumMedium Risk

Description:

Squid Web Proxy Cache could allow a remote attacker to obtain sensitive information. A remote attacker could send a URL request containing a malformed hostname to cause an error message to be returned disclosing sensitive information.


Consequences:

Obtain Information

Remedy:

Apply the 2.5.STABLE7-dothost patch, available from the Squid Web Proxy Cache Web site. See References.

For Red Hat Linux:
Refer to RHSA-2005:766-7 for patch, upgrade, or suggested workaround information. See References.

References:

  • Squid Bugzilla Bug 1143: Squid returns random error messages..
  • Squid Web Proxy Cache Web site: Squid Web Proxy Cache.
  • BID-11865: Squid Proxy Failed DNS Lookup Random Error Messages Information Disclosure Vulnerability
  • CVE-2004-2479: Squid Web Proxy Cache 2.5 might allow remote attackers to obtain sensitive information via URLs containing invalid hostnames that cause DNS operations to fail, which results in references to previously used error messages.
  • OSVDB ID: 12282: Squid Malformed Host Name Error Message Information Disclosure
  • RHSA-2005-766: squid security update
  • SA13408: Squid Malformed Host Name Error Message Information Leakage
  • SECTRACK ID: 1012466: Squid May Disclose Random Internal Information to Remote Users

Platforms Affected:

  • FreeBSD FreeBSD
  • OpenBSD OpenBSD
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 ES
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • Squid-Cache Squid 2.5 STABLE6
  • Squid-Cache Squid 2.5.STABLE1
  • Squid-Cache Squid 2.5.STABLE2
  • Squid-Cache Squid 2.5.STABLE3
  • Squid-Cache Squid 2.5.STABLE4
  • Squid-Cache Squid 2.5.STABLE5
  • Squid-Cache Squid 2.5.STABLE7

Reported:

Dec 09, 2004

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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