CVE-2016-2783 Auth bypass in n/a

Critical 9.8 Published Updated

Remote attackers can obtain unauthorized access to Avaya Fabric Connect VSP devices by sending crafted Ethernet frames due to improper index handling.

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-2016-2783?

CVE-2016-2783 is a critical authentication bypass vulnerability in n/a, published on 23 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Avaya Fabric Connect Virtual Services Platform (VSP) Operating System Software (VOSS) before 4.2.3.0 and 5.x before 5.0.1.0 does not properly handle VLAN and I-SIS indexes, which allows remote attackers to obtain unauthorized access via crafted Ethernet frames.

Weakness: CWE-19

Which versions are affected by CVE-2016-2783?

It affects 1 product.

Products include Avaya Vsp Operating System Software.

How do I fix CVE-2016-2783?

No fix has been published for CVE-2016-2783 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-2016-2783 being exploited?

There is no known exploitation of CVE-2016-2783 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-3mgw-r2j9-j49w.

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