5379 : Squid squid.conf HTCP Restriction Bypass
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Info

Last Modified

6 months ago

Percent Complete

100%

Disclosure

Feb 21, 2002

Discovery

Feb 21, 2002

Dates

Exploit

Unknown

Solution

Unknown

Description

Squid Cache contains a flaw that will prevent the HTCP interface from being disabled from the configuration file. This could allow a remote attacker to circumvent access restrictions.

Classification

Location: Remote/Network Access Required
Attack Type: Other
Impact: Unknown
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Technical

Hyper Text Cache Protocol (HTCP) is used by the Squid Cache server to communicate with other cache servers. If the Squid Cache server was compiled with HTCP enabled '--enable-htcp' then the server would create an HTCP interface to communicate on. This interaface could not be disabled even though the documentation indicated it could be done through the configuration file.

Solution

Upgrade to version 2.4.STABLE4 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Team Squid
Watch-list
Squid Web Proxy Cache
Watch-list
2.4.STABLE3
2.0.x
2.1.x
2.2.x
2.3.x
2.4.STABLE1
2.4.STABLE2

References

Credit

  • Miquel van Smoorenburg -
  • Markus Friedl -

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