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tnftp File Name Verification Vulnerability
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Secunia Advisory:
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SA13516
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Release Date:
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2004-12-17
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Last Update:
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2004-12-22
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Popularity:
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9,655 views
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Critical:
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Moderately critical
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Impact:
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Manipulation of data
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: | tnftp
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| CVE reference: | CVE-2004-1294
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Description:
Yosef Klein has reported a vulnerability in tnftp, allowing malicious people to overwrite local files.
The vulnerability is caused by lack of validation of file names provided by the server in the "mget()" function. This can be exploited to overwrite arbitrary files by sending a maliciously crafted file name from the ftp server.
Successful exploitation allows overwriting local files, but requires that a user connects to a malicious ftp server and downloads files.
The vulnerability has been reported in tnftp version 20030825 (FreeBSD port). Other versions and ports may also be vulnerable.
Solution:
Use another product.
Do not download files from untrusted sites.
Provided and/or discovered by:
Yosef Klein
Changelog:
2004-12-22: Added CVE reference.
Original Advisory:
http://tigger.uic.edu/~jlongs2/holes/tnftp.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.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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