CVE-2014-3396 Security feature bypass in n/a

High 7.5 Published Updated

Remote attackers can bypass Typhoon line-card ACL restrictions on Cisco IOS XR ASR 9000 devices via transit traffic due to improper compression encoding.

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-2014-3396?

CVE-2014-3396 is a high-severity vulnerability in Cisco Ios Xr, published on 5 Oct 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cisco IOS XR on ASR 9000 devices does not properly use compression for port-range and address-range encoding, which allows remote attackers to bypass intended Typhoon line-card ACL restrictions via transit traffic, aka Bug ID CSCup30133.

Weakness: CWE-264

Which versions are affected by CVE-2014-3396?

It affects 8 products.

Products include Cisco Asr 9000 Rsp440 Router, Cisco Asr 9001, Cisco Asr 9006, Cisco Asr 9010, Cisco Asr 9904, Cisco Asr 9912 and 2 more.

How do I fix CVE-2014-3396?

No fix has been published for CVE-2014-3396 yet. Limit exposure of the affected software until one is available.

Is CVE-2014-3396 being exploited?

There is no known exploitation of CVE-2014-3396 in the wild and no public exploit code.

All Cisco Ios Xr vulnerabilities

Sources

Also known as GHSA-j7xc-jjfg-828j.

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