CVE-2001-1380 Auth bypass in n/a

High 7.5 Published Updated

Remote attackers can bypass IP restrictions in authorized_keys2 to log in from unauthorized addresses when using multiple key types.

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

What is CVE-2001-1380?

CVE-2001-1380 is a high-severity authentication bypass vulnerability in OpenSSH, published on 2 Apr 2003. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenSSH before 2.9.9, while using keypairs and multiple keys of different types in the ~/.ssh/authorized_keys2 file, may not properly handle the "from" option associated with a key, which could allow remote attackers to login from unauthorized IP addresses.

Which versions are affected by CVE-2001-1380?

It affects 1 product.

Products include OpenSSH.

How do I fix CVE-2001-1380?

No fix has been published for CVE-2001-1380 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-2001-1380 being exploited?

There is no known exploitation of CVE-2001-1380 in the wild and no public exploit code.

All OpenSSH vulnerabilities

Sources

Also known as GHSA-35mq-8mc3-vcm8.

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