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TITLE:
Drupal Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA40930

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40930/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40930

RELEASE DATE:
2010-08-12

DISCUSS ADVISORY:
http://secunia.com/advisories/40930/#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/40930/

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=40930

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 some vulnerabilities have been reported in Drupal,
which can be exploited by malicious users to conduct script insertion
attacks, and by malicious users and malicious people to bypass certain
security restrictions.

1) A vulnerability in the OpenID module is caused due to incorrect
protocol implementation. This can be exploited to harvest positive
assertions from OpenID providers and e.g. bypass the login mechanism
by replaying intercepted assertions.

2) The weakness is caused due to an error in the upload module, which
does not properly check uploaded file names for case sensitivity and
grants access to the earlier uploaded file. This can be exploited to
download otherwise restricted files by uploading similarly named file
with different letter casing.

3) An error in the comment module does not properly check for access
permissions before republishing previously unpublished comments.

Successful exploitation of this vulnerability requires "post comments
without approval" permissions.

4) Input passed via descriptions and messages while using the actions
feature is not properly sanitised before being displayed to the user
via nodes and taxonomy terms. 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 of this vulnerability requires "administer
actions" permissions.

The weakness and the vulnerabilities are reported in versions prior
to 6.18 or 6.19 and 5.23.

NOTE: Vulnerabilities #1 and #4 only affect version 6.x.

SOLUTION:
Update to the latest version.

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

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Johnny Bufu, Christian Schmidt, and Heine
Deelstra, Drupal Security Team.
2) The vendor credits Wolfgang Ziegler.
3) The vendor credits Heine Deelstra, Drupal Security Team.
4) The vendor credits Justin Klein Keane and Heine Deelstra, Drupal
Security Team.

ORIGINAL ADVISORY:
SA-CORE-2010-002:
http://drupal.org/node/880476

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:
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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