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TITLE:
Megatops YaTFTPSvr Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA46665

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46665/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46665

RELEASE DATE:
2011-11-01

DISCUSS ADVISORY:
http://secunia.com/advisories/46665/#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/46665/

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=46665

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:
demonalex has discovered a vulnerability in Megatops YaTFTPSvr, which
can be exploited by malicious people to disclose sensitive information
or compromise a vulnerable system.

The vulnerability is caused due an input validation error within the
TFTP service and can be exploited to download or manipulate files in
arbitrary locations outside the TFTP root via specially crafted
directory traversal sequences.

The vulnerability is confirmed in version 1.0.1.200. Other versions
may also be affected.

SOLUTION:
Restrict access to the affected service to trusted hosts only.

PROVIDED AND/OR DISCOVERED BY:
demonalex

ORIGINAL ADVISORY:
http://archives.neohapsis.com/archives/bugtraq/2011-10/0218.html

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.

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Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
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