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freeSSHd SFTP Directory Buffer Overflow Vulnerability
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Secunia Advisory:
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SA30498
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Release Date:
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2008-06-02
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Last Update:
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2008-06-12
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Popularity:
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1,930 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | freeSSHd 1.x
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| CVE reference: | CVE-2008-2573
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Description:
securfrog has discovered a vulnerability in freeSSHd, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the processing of SFTP commands. This can be exploited to cause a stack-based buffer overflow via an SFTP command requesting a directory with an overly long name.
Successful exploitation allows execution of arbitrary code, but requires that the attacker has SFTP access to the server.
The vulnerability is confirmed in version 1.2.1. Other versions may also be affected.
Solution:
Restrict access to trusted users only.
Provided and/or discovered by:
securfrog
Changelog:
2008-06-12: Added CVE reference.
Original Advisory:
http://milw0rm.com/exploits/5709
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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.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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