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TITLE:
cFTP Insecure Cookie Handling Security Bypass Vulnerability

SECUNIA ADVISORY ID:
SA45429

VERIFY ADVISORY:
Secunia.com
https://secunia.com/advisories/45429/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45429

RELEASE DATE:
2011-07-29

DISCUSS ADVISORY:
https://secunia.com/advisories/45429/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

https://secunia.com/advisories/45429/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=45429

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

https://secunia.com/vulnerability_scanning/personal/
https://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been discovered in cFTP, which can be exploited
by malicious people to bypass certain security restrictions.

The vulnerability is caused due to an improper authorisation check in
includes/userlevel_check.php when certain cookie parameters (e.g.
"access" and "userlevel") are set to certain values. This can be
exploited to perform certain actions with e.g. administrative
privileges and e.g. create an administrative user.

The vulnerability is confirmed in version 0.1 r80. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure proper authorisation.

PROVIDED AND/OR DISCOVERED BY:
Simon Leblanc within a cFTP bug report.

ORIGINAL ADVISORY:
cFTP Issue#78:
https://code.google.com/p/clients-oriented-ftp/issues/detail?id=78

OTHER REFERENCES:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

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About:
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private users keeping their systems up to date against the latest
vulnerabilities.

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