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SC World Congress, New York, USA, 16 November 2011
Visit the Secunia booth (#203) and discover how you can improve your handling of third party programs:

http://secunia.com/resources/events/sc_2011/ 

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TITLE:
Joomla! Security Bypass Weakness and Cross-Site Scripting
Vulnerability

SECUNIA ADVISORY ID:
SA46834

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46834/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46834

RELEASE DATE:
2011-11-14

DISCUSS ADVISORY:
http://secunia.com/advisories/46834/#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/46834/

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=46834

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 weakness and a vulnerability have been reported in Joomla!, which
can be exploited by malicious people to bypass certain security
restrictions and conduct cross-site scripting attacks.

1) Certain unspecified input is not properly sanitised before being
returned to the user. This can be exploited to execute arbitrary HTML
and script code in a user's browser session in context of an affected
site.

This vulnerability is reported in versions prior to 1.7.3.

2) An error in the random number generation when resetting passwords
can be exploited to change a user's password.

This weakness is reported in versions prior to 1.7.3 and 1.5.25.

SOLUTION:
Update to version 1.7.3 or 1.5.25.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Corné Hannema
2) David Jardin

ORIGINAL ADVISORY:
http://developer.joomla.org/security/news/373-20111101-core-xss-vulnerability
http://developer.joomla.org/security/news/374-20111102-core-password-change
http://developer.joomla.org/security/news/375-20111103-core-password-change

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.

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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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