----------------------------------------------------------------------


Passionate about writing secure code?

http://secunia.com/company/jobs/open_positions/talented_programmer


Read this if your favourite tool is a disassembler

http://secunia.com/company/jobs/open_positions/reverse_engineer


----------------------------------------------------------------------

TITLE:
XWork "ParameterInterceptor" Security Bypass Vulnerability

SECUNIA ADVISORY ID:
SA40558

VERIFY ADVISORY:
Secunia.com
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:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/40558/

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=40558

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:
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/

----------------------------------------------------------------------

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.

----------------------------------------------------------------------