CVE-2011-0935 Auth bypass in n/a

Critical 10.0 Published Updated

Remote attackers can bypass authentication in Cisco IOS PKI by exploiting cached revoked public keys during IKE peer relationships.

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-2011-0935?

CVE-2011-0935 is a critical authentication bypass vulnerability in Cisco Ios, published on 14 Apr 2011. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The PKI functionality in Cisco IOS 15.0 and 15.1 does not prevent permanent caching of certain public keys, which allows remote attackers to bypass authentication and have unspecified other impact by leveraging an IKE peer relationship in which a key was previously valid but later revoked, aka Bug ID CSCth82164, a different vulnerability than CVE-2010-4685.

Weakness: CWE-310

Which versions are affected by CVE-2011-0935?

It affects 1 product.

Products include Cisco Ios.

How do I fix CVE-2011-0935?

No fix has been published for CVE-2011-0935 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-2011-0935 being exploited?

There is no known exploitation of CVE-2011-0935 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-w87f-j522-95hp.

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