CVE-2007-6737 Improper Authentication in pyftpdlib

High 7.5 Published Updated

Remote attackers can bypass login attempt limits to brute-force credentials against the pyftpdlib FTP server.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2007-6737?

CVE-2007-6737 is a high-severity authentication bypass vulnerability in n/a, published on 19 Oct 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies an invalid username, which makes it easier for remote attackers to obtain access via a brute-force attack.

Weakness: CWE-287

Which versions are affected by CVE-2007-6737?

3 open source packages ship an affected version, including pyftpdlib. It affects 1 product.

PackageAffectedFixed in
pyftpdlib PyPIAll versions0.2.0
pyftpdlib PyPIAll versions0.2.0
pyftpdlib PyPIAll versions0.2.0

Products include G.rodola Pyftpdlib.

How do I fix CVE-2007-6737?

Upgrade pyftpdlib to 0.2.0 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2007-6737 being exploited?

There is no known exploitation of CVE-2007-6737 in the wild and no public exploit code.

Sources

Also known as GHSA-9x66-ghqx-8g5r, PYSEC-2010-21.

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