CVE-2020-16088 Auth bypass in n/a

Critical 9.8 Published 28 Jul 2020 Updated 4 Aug 2024

Attackers can bypass authentication in OpenBSD's iked daemon due to flawed public key verification logic, potentially gaining unauthorized access.

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-2020-16088?

CVE-2020-16088 is a critical authentication bypass vulnerability in Openbsd Openbsd, published on 28 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

iked in OpenIKED, as used in OpenBSD through 6.7, allows authentication bypass because ca.c has the wrong logic for checking whether a public key matches.

Weakness: CWE-287

Which versions are affected by CVE-2020-16088?

It affects 1 product.

Products include Openbsd Openbsd.

How do I fix CVE-2020-16088?

No fix has been published for CVE-2020-16088 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-2020-16088 being exploited?

There is no known exploitation of CVE-2020-16088 in the wild and no public exploit code.

All Openbsd Openbsd vulnerabilities

Sources

Also known as GHSA-xv75-c298-2v8f.