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TFTP Server TFTPDWIN Long Message Denial of Service
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Secunia Advisory:
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SA24452
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Release Date:
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2007-03-09
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Last Update:
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2007-03-14
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Popularity:
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6,620 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From local network
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Solution Status:
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Unpatched
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| Software: | TFTP Server TFTPDWIN 0.x
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| CVE reference: | CVE-2007-1404
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Description:
Umesh Wanve has discovered a vulnerability in TFTP Server TFTPDWIN, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to the way the server handles overly long messages (error code 10040) when using the "recv_from()" call. This can be exploited to cause the service to terminate via an overly long (more than 516 bytes) datagram sent to the TFTP service (default port 69/UDP).
The vulnerability is confirmed in version 0.4.2. Other versions may also be affected.
Solution:
Use in a trusted network environment only.
Provided and/or discovered by:
Umesh Wanve
Changelog:
2007-03-14: Added CVE reference.
Original Advisory:
http://www.milw0rm.com/exploits/3432
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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