Description
The ftp_PORT function in FTPServer.py in pyftpdlib before 0.2.0 does not prevent TCP connections to privileged ports if the destination IP address matches the source IP address of the connection from the FTP client, which might allow remote authenticated users to conduct FTP bounce attacks via crafted FTP data, as demonstrated by an FTP bounce attack against a NAT server, a related issue to CVE-1999-0017.
References (4)
Core 4
Core References
Issue Tracking x_refsource_confirm
http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY
Issue Tracking x_refsource_confirm
http://code.google.com/p/pyftpdlib/issues/detail?id=11
Issue Tracking x_refsource_confirm
http://code.google.com/p/pyftpdlib/source/detail?r=32
Issue Tracking x_refsource_confirm
http://code.google.com/p/pyftpdlib/source/diff?spec=svn32&r=32&format=side&path=/trunk/pyftpdlib/FTPServer.py
Scores
EPSS
0.0177
EPSS Percentile
75.8%
Details
CWE
CWE-264
Status
published
Products (3)
g.rodola/pyftpdlib
0.1
g.rodola/pyftpdlib
< 0.1.1
pypi/pyftpdlib
0 - 0.2.0PyPI
Published
Oct 19, 2010
Tracked Since
Feb 18, 2026