CVE-2011-1575 Other in n/a

Medium 5.8 Published Updated

Man-in-the-middle attackers can inject commands into encrypted FTP sessions due to improper I/O buffering in Pure-FTPd's STARTTLS implementation.

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

What is CVE-2011-1575?

CVE-2011-1575 is a medium-severity vulnerability in n/a, published on 23 May 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.

Weakness: CWE-399

Which versions are affected by CVE-2011-1575?

It affects 1 product.

Products include Pureftpd Pure-Ftpd.

How do I fix CVE-2011-1575?

Upgrade to a fixed version.

Is CVE-2011-1575 being exploited?

There is no known exploitation of CVE-2011-1575 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as DEBIAN-CVE-2011-1575, GHSA-mqpg-5c3p-cx82.

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