CVE-2011-2165 Security feature bypass in n/a

Medium 6.8 Published Updated

Man-in-the-middle attackers can inject commands into encrypted SMTP sessions by exploiting improper I/O buffering in the STARTTLS implementation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2011-2165?

CVE-2011-2165 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 WatchGuard XCS 9.0 and 9.1 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP 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-264

Which versions are affected by CVE-2011-2165?

It affects 1 product.

Products include Watchguard Xcs.

How do I fix CVE-2011-2165?

No fix has been published for CVE-2011-2165 yet. Limit exposure of the affected software until one is available.

Is CVE-2011-2165 being exploited?

There is no known exploitation of CVE-2011-2165 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-7445-q6fm-5g46.

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