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TITLE:
WinTFTP Server Pro Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA42167

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42167/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42167

RELEASE DATE:
2010-11-09

DISCUSS ADVISORY:
http://secunia.com/advisories/42167/#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/42167/

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=42167

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 WinTFTP Server Pro, which can
be exploited by malicious people to disclose sensitive information or
compromise a vulnerable system.

The vulnerability is caused due to an input validation error when
processing GET and PUT requests and can be exploited to download or
manipulate files in arbitrary locations outside the TFTP root via
directory traversal sequences.

NOTE: The "Allow upload to server" option must be enabled in order to
use the TFTP PUT command (disabled by default).

The vulnerability is confirmed in version 3.1. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted hosts only.

PROVIDED AND/OR DISCOVERED BY:
Pr0T3cT10n

ORIGINAL ADVISORY:
http://www.exploit-db.com/exploits/15427/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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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:
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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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