CVE-2007-4430 Denial of service in n/a
Attackers can cause device restarts and BGP table rebuilds via crafted regex in show commands, requiring anonymous telnet or Looking Glass access.
- 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-2007-4430?
CVE-2007-4430 is a medium-severity denial of service vulnerability in Cisco Ios, published on 20 Aug 2007. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.
Weakness: CWE-20
Which versions are affected by CVE-2007-4430?
It affects 5 products.
Products include Cisco Cbos, Cisco Cli, Cisco Ids, Cisco Ios, Cisco Ios Xr.
How do I fix CVE-2007-4430?
No fix has been published for CVE-2007-4430 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-2007-4430 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4430 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Cisco Ios
Sources
Also known as GHSA-xw39-hmhj-f95j.