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TITLE:
zFTPServer "CWD" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA46559

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46559/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46559

RELEASE DATE:
2011-10-26

DISCUSS ADVISORY:
http://secunia.com/advisories/46559/#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/46559/

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=46559

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 reported in zFTPServer, which can be
exploited by malicious users to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the handling of
the "CWD" command, which can be exploited to cause a crash by sending
specially crafted "CWD" commands.

The vulnerability is reported in a version dated 2011-04-13 08:59.
Other versions may also be affected.

SOLUTION:
Upgrade to a version dated after 2011-10-05.

PROVIDED AND/OR DISCOVERED BY:
Myo Soe, YGN Ethical Hacker Group

ORIGINAL ADVISORY:
Myo Soe:
http://core.yehg.net/lab/pr0js/advisories/%5Bzftpserver_2011-04-13%5D_stat,cwd_dos

zFTPServer:
http://forum.zftpserver.com/viewtopic.php?f=4&t=2854

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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