Squid Web Proxy Cache authentication header forwarding information disclosure
| squid-auth-header-forwarding (9478) |  Medium Risk |
Description:
Squid could disclose sensitive information. Under certain conditions, the Squid proxy authentication header could be forwarded to external Web sites, which could allow a remote attacker to obtain the proxy username and password.
Platforms Affected:
- Conectiva, Linux 6.0
- Conectiva, Linux 7.0
- Conectiva, Linux 8.0
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Linux 6.2
- RedHat, Linux 7
- RedHat, Linux 7.1
- RedHat, Linux 7.1 for iSeries
- RedHat, Linux 7.1 for pSeries
- RedHat, Linux 7.2
- RedHat, Linux 7.3
- SCO, Caldera OpenServer 5.0.5
- SCO, Caldera OpenServer 5.0.6
- Squid-Cache, Squid 2.0
- Squid-Cache, Squid 2.1
- Squid-Cache, Squid 2.2
- Squid-Cache, Squid 2.2.STABLE5
- Squid-Cache, Squid 2.3
- Squid-Cache, Squid 2.3.STABLE2
- Squid-Cache, Squid 2.3.STABLE3
- Squid-Cache, Squid 2.3.STABLE4
- Squid-Cache, Squid 2.3.STABLE4-11
- Squid-Cache, Squid 2.3.STABLE5
- Squid-Cache, Squid 2.4
- Squid-Cache, Squid 2.4.DEVEL2
- Squid-Cache, Squid 2.4.DEVEL4
- Squid-Cache, Squid 2.4.PRE-STABLE
- Squid-Cache, Squid 2.4.PRE-STABLE2
- Squid-Cache, Squid 2.4.STABLE1
- Squid-Cache, Squid 2.4.STABLE2
- Squid-Cache, Squid 2.4.STABLE2-2
- Squid-Cache, Squid 2.4.STABLE2-3
- Squid-Cache, Squid 2.4.STABLE4
- Squid-Cache, Squid 2.4.STABLE6
Remedy:
Upgrade to the latest version of Squid Web Proxy Cache (2.4.STABLE7 or later), as listed in Squid Proxy Cache Security Update Advisory SQUID-2002:3. See References.
For Red Hat Linux:
Upgrade to the latest Squid package, as listed below. Refer to RHSA-2002:051-16 for more information. See References.
Red Hat 6.2: 2.4.STABLE6-6.6.2 or later
Red Hat 7.0: 2.4.STABLE6-6.7.0 or later
Red Hat 7.1: 2.4.STABLE6-6.7.1 or later
Red Hat 7.2 and 7.3: 2.4.STABLE6-6.7.3 or later
For Conectiva Linux:
Upgrade to the latest Squid packages, as listed below. Refer to Conectiva Linux Security Announcement CLA-2002:506 for more information. See References.
Conectiva 6.0: 2.4.7-1U60_3cl or later
Conectiva 7.0: 2.4.7-1U70_3cl or later
Conectiva 8.0: 2.4.7-1U8_3cl or later
For Caldera OpenServer 5.0.5 and 5.0.6:
Upgrade to the appropriate fixed binaries, as listed in SCO Security Advisory CSSA-2003-SCO.9. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Obtain Information
References:
- Conectiva Linux Announcement CLSA-2002:506, squid at http://distro.conectiva.com/atualizacoes/?id=a&anuncio=000506.
- SCO Security Advisory CSSA-2003-SCO.9, Buffer overflows and other security vulnerabilities in Squid at ftp://ftp.sco.com/pub/updates/OpenServer/CSSA-2003-SCO.9/CSSA-2003-SCO.9.txt.
- Squid Proxy Cache Security Update Advisory SQUID-2002:3, Squid Proxy Cache Security Update Advisory at http://www.squid-cache.org/Advisories/SQUID-2002_3.txt.
- BID-5154: Squid Proxy Authentication Credential Forwarding Information Disclosure Vulnerability
- CVE-2002-0715: Vulnerability in Squid before 2.4.STABLE6 related to proxy authentication credentials may allow remote web sites to obtain the user's proxy login and password.
- RHSA-2002-051: New Squid packages available
- RHSA-2002-130: squid security update
Reported:
Jul 03, 2002
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