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AT-TFTP Server Long Filename Buffer Overflow Vulnerability
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Secunia Advisory:
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SA23106
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Release Date:
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2006-11-28
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Last Update:
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2006-12-04
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Popularity:
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6,137 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: | AT-TFTP Server 1.x
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| CVE reference: | CVE-2006-6184
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Description:
A vulnerability has been discovered in AT-TFTP Server, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability 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 field (more than 227 bytes).
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in version 1.9 and also reported in version 1.8. Other versions may also be vulnerable.
Solution:
Use in a trusted network environment only.
Provided and/or discovered by:
Originally discovered in version 1.8 by:
Luigi Auriemma
Re-discovered in version 1.9 by:
Liu Qixu, NCNIPC
Changelog:
2006-11-29: Updated credits and added information about version 1.8.
2006-12-04: Added CVE reference.
Original Advisory:
http://aluigi.altervista.org/adv/attftp-adv.txt
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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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