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Apache Modules Multiple Vulnerabilities
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Secunia Advisory:
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SA28046
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Release Date:
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2007-12-12
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Last Update:
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2008-07-10
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Popularity:
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12,859 views
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Critical:
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Less critical
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Impact:
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Cross Site Scripting
DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Apache 2.2.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2007-5000
CVE-2007-6388
CVE-2007-6421
CVE-2007-6422
CVE-2007-6420
CVE-2008-0005
CVE-2008-1678
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Description:
Some vulnerabilities have been reported in multiple Apache modules, which can be exploited by malicious people to conduct cross-site scripting and cross-site request forgery attacks and by malicious users and malicious people to cause a DoS (Denial of Service).
1) Certain unspecified input passed to "mod_imagemap" is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
Successful exploitation requires that "mod_imagemap" is enabled and a mapfile is publicly accessible.
2) Input passed via the "refresh" parameter to the "mod_status" module is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
Successful exploitation requires that "mod_status" is enabled and that the status pages are publicly accessible.
3) Input passed via the worker route and the worker redirect string to the "mod_proxy_balancer" module is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
Successful exploitation requires that "mod_proxy_balancer" is enabled.
4) An error exists within the balancer manager functionality of the "mod_proxy_balancer" module. This can be exploited by malicious users to cause a DoS via an invalid balancer name.
Successful exploitation results in a crash if a threaded Multi-Processing Module is used on servers where "mod_proxy_balancer" is enabled.
5) The administrative interface of the "mod_proxy_balancer" module allows users to perform certain actions via HTTP requests without performing any validity checks to verify the request. This can be exploited to perform actions with the privileges of a target user, who is tricked into visiting a malicious website.
The vulnerabilities are reported in versions 2.2.6, 2.2.5, 2.2.4, 2.2.3, 2.2.2, and 2.2.0.
NOTE: An error in the "mod_proxy_ftp" module when a forward proxy is configured has also been reported. This can potentially be exploited to conduct cross-site scripting attacks.
6) A memory leak within the "mod_ssl" module can be exploited to cause a DoS by opening a large amount of SSL connections with zlib support.
Successful exploitation of this vulnerability requires that the module is linked against OpenSSL 0.9.8f or later.
Solution:
Update to version 2.2.9.
http://httpd.apache.org/download.cgi
Provided and/or discovered by:
1) Reported by the vendor.
2, 3, 4, 5) sp3x, SecurityReason
6) The vendor thanks Joe Orton, Amund Elstad, and Dr Stephen Henson
Changelog:
2008-01-07: Updated advisory to include vulnerabilities #2, #3, and #4.
2008-01-15: Updated credits section and "Original Advisory" section.
2008-01-16: Added link to "Original Advisory" section.
2008-01-21: Updated "Description" and "Solution" sections. Added CVE reference.
2008-01-28: Added CVE reference.
2008-06-16: Added additional details about CVE-2007-6420 through vulnerability #5. Updated "Solution" section.
2008-07-10: Added vulnerability #6. Added CVE reference.
Original Advisory:
http://httpd.apache.org/security/vulnerabilities_22.html
http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?revision=608860
SecurityReason:
http://securityreason.com/securityalert/3541
http://securityreason.com/securityalert/3523
http://securityreason.com/securityalert/3526
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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