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TITLE:
Apache HTTP Server "httpOnly" Cookie Disclosure and Denial of Service

SECUNIA ADVISORY ID:
SA47779

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47779/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47779

RELEASE DATE:
2012-01-27

DISCUSS ADVISORY:
http://secunia.com/advisories/47779/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Impact
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 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/47779/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=47779

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Some vulnerabilities have been reported in Apache HTTP Server, which
can be exploited by malicious people to disclose potentially
sensitive information and cause a DoS (Denial of Service).

1) An error when handling the "%{cookiename}C" log format string when
using a threaded MPM can be exploited to cause a crash by sending a
specially crafted cookie.

This vulnerability is reported in versions 2.2.17, 2.2.18, 2.219,
2.2.20, and 2.2.21.

2) An error within the default error response for status code 400
when no custom ErrorDocument is configured can be exploited to expose
"httpOnly" cookies.

This vulnerability is reported in versions 2.2.0, 2.2.2, 2.2.3,
2.2.4, 2.2.5, 2.2.6, 2.2.8, 2.2.9, 2.2.10, 2.2.11, 2.2.12, 2.2.13,
2.2.14, 2.2.15, 2.2.16, 2.2.17, 2.2.18, 2.2.19, 2.2.20, and 2.2.21.

SOLUTION:
Fixed in the SVN repository.

PROVIDED AND/OR DISCOVERED BY:
1) Reported to the Apache security team by an unspecified person.
2) The vendor credits Norman Hippert.

ORIGINAL ADVISORY:
http://httpd.apache.org/security/vulnerabilities_22.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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