CVE-2007-6740 pyftpdlib vulnerable to allocation of resources without limits
Remote authenticated users can cause a denial of service in pyftpdlib by exploiting unlimited filename discovery attempts in the STOU command.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-6740?
CVE-2007-6740 is a medium-severity denial of service vulnerability in n/a, published on 19 Oct 2010. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.
Weakness: CWE-264
Which versions are affected by CVE-2007-6740?
3 open source packages ship an affected version, including pyftpdlib. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pyftpdlib PyPI | All versions | 0.2.0 |
pyftpdlib PyPI | All versions | 0.2.0 |
pyftpdlib PyPI | All versions | 0.2.0 |
Products include G.rodola Pyftpdlib.
How do I fix CVE-2007-6740?
Upgrade pyftpdlib to 0.2.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2007-6740 being exploited?
There is no known exploitation of CVE-2007-6740 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-cx59-cp6c-9fr8, PYSEC-2010-24.