CVE-2015-4316 Auth bypass in n/a

Medium 5.5 Published Updated

Remote authenticated users can impersonate others via crafted registration due to improper endpoint validation in Cisco TelePresence VCS.

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-2015-4316?

CVE-2015-4316 is a medium-severity authentication bypass vulnerability in n/a, published on 20 Aug 2015. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Mobile and Remote Access (MRA) endpoint-validation feature in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 improperly validates the phone line used for registration, which allows remote authenticated users to conduct impersonation attacks via a crafted registration, aka Bug ID CSCuv40396.

Weakness: CWE-20

Which versions are affected by CVE-2015-4316?

It affects 1 product.

Products include Cisco Telepresence Video Communication Server Software.

How do I fix CVE-2015-4316?

No fix has been published for CVE-2015-4316 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-2015-4316 being exploited?

There is no known exploitation of CVE-2015-4316 in the wild and no public exploit code.

Sources

Also known as GHSA-2mgc-vc9w-hfw7.

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