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TITLE:
at32 Reverse Proxy Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA48460

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48460/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48460

RELEASE DATE:
2012-03-20

DISCUSS ADVISORY:
http://secunia.com/advisories/48460/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/48460/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=48460

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:
demonalex has discovered a vulnerability in at32 Reverse Proxy, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to a NULL pointer dereference error
when processing web requests and can be exploited to cause a crash
via an overly long string within a HTTP header.

The vulnerability is confirmed in version 1.060.310. Other versions
may also be affected.

SOLUTION:
Restrict access to trusted hosts only.

PROVIDED AND/OR DISCOVERED BY:
demonalex

ORIGINAL ADVISORY:
http://archives.neohapsis.com/archives/bugtraq/2012-03/0080.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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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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