CVE-2014-2146 Security feature bypass in n/a

Medium 6.5 Published Updated

Remote attackers can bypass Zone-Based Firewall restrictions by spoofing traffic to match existing sessions, requiring network administrators to apply vendor patches.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2014-2146?

CVE-2014-2146 is a medium-severity vulnerability in Cisco Ios, published on 22 Sep 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Zone-Based Firewall (ZBFW) functionality in Cisco IOS, possibly 15.4 and earlier, and IOS XE, possibly 3.13 and earlier, mishandles zone checking for existing sessions, which allows remote attackers to bypass intended resource-access restrictions via spoofed traffic that matches one of these sessions, aka Bug IDs CSCun94946 and CSCun96847.

Weakness: CWE-20

Which versions are affected by CVE-2014-2146?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2014-2146?

No fix has been published for CVE-2014-2146 yet. Limit exposure of the affected software until one is available.

Is CVE-2014-2146 being exploited?

There is no known exploitation of CVE-2014-2146 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-cvf4-6mxr-vc38.

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