Apache HTTP Server SSLCipherSuite bypass restrictions

apache-sslciphersuite-restriction-bypass (17671) The risk level is classified as MediumMedium Risk

Description:

Apache HTTP Server could allow a remote attacker to bypass certain restrictions. If the mod_ssl module is configured to use the SSLCipherSuite directive in directory or location context, a remote attacker could use an arbitrary cipher suite, that is different from the set of cipher suites required for a specific location, and use weaker than allowed encryption types to bypass some restrictions.

Platforms Affected:

  • Apache, HTTP Server 2.0.35
  • Apache, HTTP Server 2.0.36
  • Apache, HTTP Server 2.0.37
  • Apache, HTTP Server 2.0.38
  • Apache, HTTP Server 2.0.39
  • Apache, HTTP Server 2.0.40
  • Apache, HTTP Server 2.0.41
  • Apache, HTTP Server 2.0.42
  • Apache, HTTP Server 2.0.43
  • Apache, HTTP Server 2.0.44
  • Apache, HTTP Server 2.0.45
  • Apache, HTTP Server 2.0.46
  • Apache, HTTP Server 2.0.47
  • Apache, HTTP Server 2.0.48
  • Apache, HTTP Server 2.0.49
  • Apache, HTTP Server 2.0.50
  • Apache, HTTP Server 2.0.51
  • Apache, HTTP Server 2.0.52
  • Apple, Mac OS X 10.2.8
  • Apple, Mac OS X 10.3.6
  • Apple, Mac OS X Server 10.2.8
  • Apple, Mac OS X Server 10.3.6
  • Canonical, Ubuntu 4.10
  • Canonical, Ubuntu 5.04
  • Conectiva, Linux 10
  • Conectiva, Linux 9.0
  • Gentoo, Linux
  • MandrakeSoft, Mandrake Linux 10.0
  • MandrakeSoft, Mandrake Linux 10.0 AMD64
  • MandrakeSoft, Mandrake Linux 10.1
  • MandrakeSoft, Mandrake Linux 10.1 X86_64
  • MandrakeSoft, Mandrake Linux 9.2 AMD64
  • MandrakeSoft, Mandrake Linux 9.2
  • MandrakeSoft, Mandrake Linux Corporate Server 2.1
  • MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
  • MandrakeSoft, Mandrake Multi Network Firewall 8.2
  • Novell, Linux Desktop 9
  • OpenPKG, OpenPKG 2.0
  • OpenPKG, OpenPKG 2.1
  • OpenPKG, OpenPKG CURRENT
  • RedHat, Enterprise Linux 2.1 WS
  • RedHat, Enterprise Linux 2.1 AS
  • RedHat, Enterprise Linux 2.1 ES
  • RedHat, Enterprise Linux 3 WS
  • RedHat, Enterprise Linux 3 ES
  • RedHat, Enterprise Linux 3 Desktop
  • RedHat, Enterprise Linux 3 AS
  • RedHat, Linux Advanced Workstation 2.1 Itanium
  • RedHat, Network Proxy 4.2
  • RedHat, Network Satellite Server 4.2
  • RedHat, Network Satellite Server 5.0
  • RedHat, Stronghold
  • Slackware, Slackware Linux 10.0
  • Slackware, Slackware Linux 8.1
  • Slackware, Slackware Linux 9.0
  • Slackware, Slackware Linux 9.1
  • Slackware, Slackware Linux current
  • SuSE, Linux Enterprise Server 8
  • SuSE, Linux Enterprise Server 9
  • SuSE, SuSE Linux 8.1
  • SuSE, SuSE Linux 8.2
  • SuSE, SuSE Linux 9.0
  • SuSE, SuSE Linux 9.1
  • SuSE, SuSE Linux 9.2
  • SuSE, SuSE Linux Desktop 1.0
  • Turbolinux, Turbolinux 10 Desktop
  • Turbolinux, Turbolinux 10 F...
  • Turbolinux, Turbolinux 10 Server
  • Turbolinux, Turbolinux 7 Server
  • Turbolinux, Turbolinux 8 Server
  • Turbolinux, Turbolinux Home
  • Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed

Remedy:

Upgrade to the latest version of Apache HTTP Server (2.0.53-dev or later), available from the Apache Web site. See References.

or OpenPKG:
Upgrade to the latest apache package, as listed in OpenPKG Security Advisory OpenPKG-SA-2004.044. See References.

OpenPKG CURRENT:1.3.31-20041015 or later
OpenPKG 2.1:1.3.31-2.1.5 or later
OpenPKG 2.0:1.3.29-2.0.6 or later

For Gentoo Linux:
Upgrade to the latest version of apache, as listed in GLSA 200410-21. See References.

For Slackware Linux:
Upgrade to the latest apache, mod_ssl or php package, as listed in slackware-security Mailing List, Mon, 25 Oct 2004 17:40:01 -0700 (PDT) for more information. See References.

For Mandrake Linux:
Upgrade to the latest mod_ssl/apache2-mod_ssl package, as listed in MandrakeSoft Security Advisory MDKSA-2004:122 for more information. See References.

For Conectiva Linux:
Upgrade to the latest apache package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:885 for more information. See References.

Conectiva Linux 10.0: 2.0.49-61251U10_2cl or later
Conectiva Linux 9: 2.0.45-28790U90_9cl or later

For Red Hat Linux:
Upgrade to the latest httpd package, as listed below. Refer to RHSA-2004:562-11 for more information. See References.

Red Hat Enterprise Linux AS (v. 3), ES (v. 3), WS (v. 3), Desktop: 2.0.46-44.ent.x86_64 or later

For Red Hat Linux Stronghold:
Refer to RHSA-2005:816-10 for patch, upgrade, or suggested workaround information. See References.

For Mac OS:
Apply Security Update 2004-12-02, as listed in AppleCare Knowledge Base Document 61798. See References.

For TurboLinux:
Upgrade to the latest httpd package (2.0.51-8 or later), as listed in Turbolinux Security Advisory TLSA-2005-2. See References.

For other distributions:
Apply the appropriate update for your system. See References.

Consequences:

Bypass Security

References:

Reported:

Oct 11, 2004

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