CVE-2014-3309 Security feature bypass in n/a

Medium 5.0 Published Updated

Remote attackers can bypass NTP access restrictions in Cisco IOS when configured to deny all, allowing unauthorized time synchronization.

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-2014-3309?

CVE-2014-3309 is a medium-severity vulnerability in Cisco Ios, published on 9 Jul 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a "deny all" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.

Weakness: CWE-264

Which versions are affected by CVE-2014-3309?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2014-3309?

No fix has been published for CVE-2014-3309 yet. Limit exposure of the affected software until one is available.

Is CVE-2014-3309 being exploited?

There is no known exploitation of CVE-2014-3309 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-xrcg-wf6c-6jc9.

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