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TITLE:
ownCloud Password Reset Vulnerability

SECUNIA ADVISORY ID:
SA48856

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48856/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48856

RELEASE DATE:
2012-04-20

DISCUSS ADVISORY:
http://secunia.com/advisories/48856/#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/48856/

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=48856

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:
luks has discovered a vulnerability in ownCloud, which can be
exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to the core/lostpassword/index.php
script generating predictable tokens for password resets and can be
exploited to change the passwords of arbitrary users.

The vulnerability is confirmed in version 3.0.1. Prior versions may
also be affected.

SOLUTION:
Update to version 3.0.2.

PROVIDED AND/OR DISCOVERED BY:
luks

ORIGINAL ADVISORY:
luks:
http://seclists.org/fulldisclosure/2012/Apr/223

ownCloud:
http://gitorious.org/owncloud/owncloud/commit/85f9869f6925ef52c1015916bbc28e13c15abc73

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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