CVE-2012-4621 Denial of service in n/a
Remote attackers can cause a denial of service via a DHCP packet in Cisco IOS devices with Device Sensor enabled.
- 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-2012-4621?
CVE-2012-4621 is a high-severity denial of service vulnerability in Cisco Ios, published on 27 Sep 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Device Sensor feature in Cisco IOS 15.0 through 15.2 allows remote attackers to cause a denial of service (device reload) via a DHCP packet, aka Bug ID CSCty96049.
Weakness: CWE-399
Which versions are affected by CVE-2012-4621?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2012-4621?
No fix has been published for CVE-2012-4621 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-2012-4621 being exploited?
There is no known exploitation of CVE-2012-4621 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-cj2f-mfq7-3wfr.