CVE-2007-4459 Denial of service in n/a
Remote attackers can cause a denial of service and device reboot on Cisco IP Phones by sending specific sequences of invalid SIP messages.
- 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-2007-4459?
CVE-2007-4459 is a high-severity denial of service vulnerability in n/a, published on 21 Aug 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cisco IP Phone 7940 and 7960 with P0S3-08-6-00 firmware, and other SIP firmware before 8.7(0), allows remote attackers to cause a denial of service (device reboot) via (1) a certain sequence of 10 invalid SIP INVITE and OPTIONS messages; or (2) a certain invalid SIP INVITE message that contains a remote tag, followed by a certain set of two related SIP OPTIONS messages.
Weakness: CWE-20
Which versions are affected by CVE-2007-4459?
It affects 2 products.
Products include Cisco Voip Phone Cp-7940, Cisco Voip Phone Cp-7960.
How do I fix CVE-2007-4459?
No fix has been published for CVE-2007-4459 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-2007-4459 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4459 exists.
Public exploit code: 2 Exploit-DB entries.
Sources
Also known as GHSA-r3r7-8q5v-779v.