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TFTP Server TFTPDWIN Buffer Overflow Vulnerability
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Secunia Advisory:
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SA21854
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Release Date:
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2006-09-21
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Last Update:
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2006-09-26
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Popularity:
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6,430 views
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Critical:
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Moderately critical
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Impact:
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System access
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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-2006-4948
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Description:
Parvez Anwar has discovered a vulnerability in TFTP Server TFTPDWIN, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in tftpd.exe during the processing of requested resources. This can be exploited to cause a stack-based buffer overflow by requesting a resource with an overly long name (more than 280 bytes).
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in version 0.4.2. Other versions may also be affected.
Solution:
Restrict use of the TFTP service to trusted networks only.
Provided and/or discovered by:
Parvez Anwar
Changelog:
2006-09-26: Added CVE reference.
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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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