CVE-2016-9201 Security feature bypass in Cisco IOS and Cisco IOS XE

High 7.5 Published Updated

An unauthenticated remote attacker can bypass Zone-Based Firewall rules to pass traffic that should be dropped, requiring an upgrade to Cisco IOS or IOS XE.

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-2016-9201?

CVE-2016-9201 is a high-severity vulnerability in Cisco Ios, published on 14 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Zone-Based Firewall feature of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to pass traffic that should otherwise have been dropped based on the configuration. More Information: CSCuz21015. Known Affected Releases: 15.3(3)M3. Known Fixed Releases: 15.6(2)T0.1 15.6(2.0.1a)T0 15.6(2.19)T 15.6(3)M.

Weakness: CWE-200, CWE-20

Which versions are affected by CVE-2016-9201?

It affects 1 product.

Products include Cisco Ios.

How do I fix CVE-2016-9201?

No fix has been published for CVE-2016-9201 yet. Limit exposure of the affected software until one is available.

Is CVE-2016-9201 being exploited?

There is no known exploitation of CVE-2016-9201 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-rwg4-2f3r-qq47.

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