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TITLE:
Drupal Views Module Autocomplete User Information Disclosure Weakness

SECUNIA ADVISORY ID:
SA40444

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40444/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40444

RELEASE DATE:
2010-07-07

DISCUSS ADVISORY:
http://secunia.com/advisories/40444/#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/40444/

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=40444

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:
Justin C. Klein Keane has discovered a weakness in the Views module
for Drupal, which can be exploited by malicious people to disclose
potentially sensitive information.

The weakness caused due an error in the
"views_ajax_autocomplete_user()" function in
modules/views/includes/ajax.inc, which does not properly check for
access permissions before querying for usernames. This can be
exploited to enumerate valid usernames.

The weakness is confirmed in version 6.x-2.11 and also reported in
version 5.x-1.8. Other versions may also be affected.

SOLUTION:
Edit the source code to implement proper access restrictions.

PROVIDED AND/OR DISCOVERED BY:
Justin C. Klein Keane

ORIGINAL ADVISORY:
http://www.madirish.net/?article=465

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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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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