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ProFTPD ASCII File Translation Off-By-One Vulnerability
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Secunia Advisory:
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SA11039
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Release Date:
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2004-03-04
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Last Update:
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2004-03-05
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Popularity:
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12,598 views
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | ProFTPD 1.2.x
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Description:
Phantasmal Phantasmagoria has reported a vulnerability in ProFTPD, which potentially can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to two off-by-one errors in the "_xlate_ascii_write()" function. These can eg. be exploited by uploading and then retrieving ("RETR") a specially crafted file.
Successful exploitation may allow execution of arbitrary code with the privileges of ProFTPD.
The vulnerability has been reported in the following versions:
* 1.2.7/1.2.7p
* 1.2.8/1.2.8p
* 1.2.9rc1/1.2.9rc1p
* 1.2.9rc2/1.2.9rc2p
Solution:
The vulnerabilities are reportedly not present in version 1.2.9rc3 and later.
http://www.proftpd.org/download.html
Provided and/or discovered by:
Phantasmal Phantasmagoria
Changelog:
2004-03-05: Updated "Description" section.
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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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