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TITLE:
WordPress LISL Last-Image Slider Plugin "src" Arbitrary File Upload
Vulnerability

SECUNIA ADVISORY ID:
SA46108

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46108/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46108

RELEASE DATE:
2011-09-21

DISCUSS ADVISORY:
http://secunia.com/advisories/46108/#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/46108/

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=46108

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 discovered in the LISL Last-Image Slider
plugin for WordPress, which can be exploited by malicious people to
compromise a vulnerable system.

Input passed via the "src" parameter in
wp-content/plugins/lisl-last-image-slider/timthumb.php is not
properly verified before being used to cache files. This can be
exploited to upload and execute arbitrary PHP files.

This may be related to vulnerability #1 in:
SA45416

The vulnerability is confirmed in version 1.0. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly verified.

PROVIDED AND/OR DISCOVERED BY:
Ben Schmidt

ORIGINAL ADVISORY:
Ben Schmidt:
http://spareclockcycles.org/2011/09/18/exploitring-the-wordpress-extension-repos/

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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