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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200509-12] Apache, mod_ssl: Multiple vulnerabilities


Vulnerability Assessment Details

[GLSA-200509-12] Apache, mod_ssl: Multiple vulnerabilities

Vulnerability Assessment Summary
Apache, mod_ssl: Multiple vulnerabilities

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200509-12
(Apache, mod_ssl: Multiple vulnerabilities)


mod_ssl contains a security issue when "SSLVerifyClient optional" is
configured in the global virtual host configuration (CVE-2005-2700).
Also, Apache's httpd includes a PCRE library, which makes it vulnerable
to an integer overflow (CVE-2005-2491).

Impact

Under a specific configuration, mod_ssl does not properly enforce the
client-based certificate authentication directive, "SSLVerifyClient
require", in a per-location context, which could be potentially used by
a remote attacker to bypass some restrictions. By creating a specially
crafted ".htaccess" file, a local attacker could possibly exploit
Apache's vulnerability, which would result in a local privilege
escalation.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2491
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2700


Solution:
All mod_ssl users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-www/mod_ssl-2.8.24"
All Apache 2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-www/apache-2.0.54-r15"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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