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AT-TFTP Server Long Filename BoF Vulnerability

Information

Severity

Severity

Critical

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Wont Fix

Created

Created

10 years ago

Modified

Modified

5 years ago

Summary

This host is running AT-TFTP Server and is prone to buffer overflow vulnerability.

Insight

Insight

The falw is caused due to a boundary error during the processing of TFTP Read/Write request packet types. This can be exploited to cause a stack-based buffer overflow by sending a specially crafted packet with an overly long filename.

Affected Software

Affected Software

Allied Telesyn TFTP Server (AT-TFTP) version 1.9 and possibly earlier.

Detection Method

Detection Method

Send crafted tftp request and check is it vulnerable to BoF or not.

Solution

Solution

No known solution was made available for at least one year since the disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.

Common Vulnerabilities and Exposures (CVE)