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TITLE:
XWork "ParameterInterceptor" Security Bypass Vulnerability

SECUNIA ADVISORY ID:
SA40558

VERIFY ADVISORY:
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http://secunia.com/advisories/40558/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40558

RELEASE DATE:
2010-07-13

DISCUSS ADVISORY:
http://secunia.com/advisories/40558/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/40558/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=40558

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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
A vulnerability has been reported in XWork, which can be exploited by
malicious people to bypass certain security restrictions.

The vulnerability is caused due to the "ParameterInterceptor" class
improperly restricting access to server-side objects. This can be
exploited to modify server-side objects and e.g. execute arbitrary
commands via specially crafted OGNL (Object-Graph Navigation
Language) expressions.

This is related to:
SA32495

SOLUTION:
Filter malicious characters and character sequences using a proxy.

PROVIDED AND/OR DISCOVERED BY:
Meder Kydyraliev, Google Security Team

ORIGINAL ADVISORY:
http://blog.o0o.nu/2010/07/cve-2010-1870-struts2xwork-remote.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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