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TITLE:
Drupal Hashcash Module Invalid Token Script Insertion Vulnerability

SECUNIA ADVISORY ID:
SA49683

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49683/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49683

RELEASE DATE:
2012-06-28

DISCUSS ADVISORY:
http://secunia.com/advisories/49683/#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/49683/

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=49683

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 the Hashcash module for Drupal,
which can be exploited by malicious people to conduct script
insertion attacks.

Input passed via an invalid token is not properly sanitised before
being used. This can be exploited to insert arbitrary HTML and script
code, which will be executed in a user's browser session in context of
an affected site when the malicious data is being viewed.

Successful exploitation requires that "Log failed hashcash" is
enabled (disabled by default).

The vulnerability is reported in versions 6.x-2.x prior to 6.x-2.6
and 7.x-2.x prior to 7.x-2.2.

SOLUTION:
Update to a patched version.

Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Heine Deelstra.

ORIGINAL ADVISORY:
SA-CONTRIB-2012-105:
http://drupal.org/node/1663306

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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