CVE-2016-1888 Auth bypass in n/a

High 7.5 Published 15 Feb 2017 Updated 5 Aug 2024

Remote attackers can bypass authentication in FreeBSD telnetd by injecting arguments via memory allocation failures.

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-2016-1888?

CVE-2016-1888 is a high-severity authentication bypass vulnerability in Freebsd Freebsd, published on 15 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The telnetd service in FreeBSD 9.3, 10.1, 10.2, 10.3, and 11.0 allows remote attackers to inject arguments to login and bypass authentication via vectors involving a "sequence of memory allocation failures."

Weakness: CWE-287

Which versions are affected by CVE-2016-1888?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2016-1888?

No fix has been published for CVE-2016-1888 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2016-1888 being exploited?

There is no known exploitation of CVE-2016-1888 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-5cjm-783q-fc7h.