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TITLE:
OSClass combine.php File Manipulation Vulnerability

SECUNIA ADVISORY ID:
SA48284

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48284/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48284

RELEASE DATE:
2012-03-09

DISCUSS ADVISORY:
http://secunia.com/advisories/48284/#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/48284/

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=48284

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 OSClass, which can be
exploited by malicious users to compromise a vulnerable system and by
malicious people to manipulate certain data.

The vulnerability is caused due to the
oc-content/themes/modern/combine.php script not verifying file names
before creating cache files. This can be exploited to e.g. overwrite
arbitrary files or copy certain files to an arbitrary path via
directory traversal sequences.

Note: This can further be exploited to download certain files or
execute arbitrary PHP code by renaming an uploaded file.

The vulnerability is confirmed in version 2.3.5. Prior versions may
also be affected.

SOLUTION:
Update to version 2.3.6.

PROVIDED AND/OR DISCOVERED BY:
Filippo Cavallarin, CodSeq.

ORIGINAL ADVISORY:
CSA-12004:
http://www.codseq.it/advisories/osclass_directory_traversal_vulnerability

OSClass:
http://osclass.org/2012/03/05/osclass-2-3-6/

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:
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vulnerabilities.

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