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Gentoo Linux Security Advisory GLSA 200410-21 |
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http://security.gentoo.org/ |
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Severity: Low |
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Title: Apache 2, mod_ssl: Bypass of SSLCipherSuite directive |
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Date: October 21, 2004 |
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Bugs: #66807 |
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ID: 200410-21 |
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Synopsis |
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======== |
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|
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In certain configurations, it can be possible to bypass restrictions |
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set by the "SSLCipherSuite" directive of mod_ssl. |
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Background |
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========== |
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|
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The Apache HTTP server is one of the most popular web servers on the |
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internet. mod_ssl provides SSL v2/v3 and TLS v1 support for Apache 1.3 |
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and is also included in Apache 2. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-www/apache < 2.0.52 >= 2.0.52 |
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< 2.0 |
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2 net-www/mod_ssl < 2.8.20 >= 2.8.20 |
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------------------------------------------------------------------- |
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2 affected packages on all of their supported architectures. |
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------------------------------------------------------------------- |
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|
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Description |
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=========== |
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|
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A flaw has been found in mod_ssl where the "SSLCipherSuite" directive |
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could be bypassed in certain configurations if it is used in a |
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directory or location context to restrict the set of allowed cipher |
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suites. |
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|
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Impact |
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====== |
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|
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A remote attacker could gain access to a location using any cipher |
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suite allowed by the server/virtual host configuration, disregarding |
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the restrictions by "SSLCipherSuite" for that location. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All Apache 2 users should upgrade to the latest version: |
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# emerge sync |
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# emerge -pv ">=net-www/apache-2.0.52" |
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# emerge ">=net-www/apache-2.0.52" |
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|
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All mod_ssl users should upgrade to the latest version: |
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# emerge sync |
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|
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# emerge -pv ">=net-www/mod_ssl-2.8.20" |
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# emerge ">=net-www/mod_ssl-2.8.20" |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2004-0885 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0885 |
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[ 2 ] Apache HTTPD Bug 31505 |
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http://issues.apache.org/bugzilla/show_bug.cgi?id=31505 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200410-21.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/1.0 |
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