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TITLE:
Apache Struts Security Bypass and Directory Traversal

SECUNIA ADVISORY ID:
SA32497

VERIFY ADVISORY:
http://secunia.com/advisories/32497/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Exposure of system information, Exposure of
sensitive information

WHERE:
>From remote

SOFTWARE:
Apache Struts 2.x
http://secunia.com/advisories/product/15570/

DESCRIPTION:
Some vulnerabilities have been reported in Apache Struts, which can
be exploited by malicious people to bypass certain security
restrictions or to disclose sensitive information.

1) An error in XWork can be exploited to manipulate server-side
objects.

For more information:
SA32495

2) An error in the "FilterDispatcher" and
"DefaultStaticContentLoader" classes can be exploited to download
arbitrary files via directory traversal sequences.

The vulnerabilities are reported in versions prior to 2.0.12.

SOLUTION:
Update to version 2.0.12.

PROVIDED AND/OR DISCOVERED BY:
1) Reported in an XWork bug by Meder Kydyraliev, Google Security
Team.
2) The vendor credits Csaba Barta and László Tóth,
PricewaterhouseCoopers.

ORIGINAL ADVISORY:
http://struts.apache.org/2.x/docs/s2-003.html
http://struts.apache.org/2.x/docs/s2-004.html

OTHER REFERENCES:
SA32495:
http://secunia.com/advisories/32495/

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