CVE-2013-5472 Denial of service in n/a

High 7.1 Published Updated

Remote attackers with MSDP peer access can crash Cisco IOS devices by sending malformed multicast NTP packets, causing a denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2013-5472?

CVE-2013-5472 is a high-severity denial of service vulnerability in Cisco Ios, published on 27 Sep 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The NTP implementation in Cisco IOS 12.0 through 12.4 and 15.0 through 15.1, and IOS XE 2.1 through 3.3, does not properly handle encapsulation of multicast NTP packets within MSDP SA messages, which allows remote attackers to cause a denial of service (device reload) by leveraging an MSDP peer relationship, aka Bug ID CSCuc81226.

Weakness: CWE-20

Which versions are affected by CVE-2013-5472?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2013-5472?

No fix has been published for CVE-2013-5472 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2013-5472 being exploited?

There is no known exploitation of CVE-2013-5472 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-v6fm-cxxx-62h6.

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