CVE-2007-4323 Denial of service in n/a
Remote attackers can cause denial of service by injecting IP addresses into SSH logs, which DenyHosts incorrectly parses into the hosts.deny file.
- 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-2007-4323?
CVE-2007-4323 is a medium-severity denial of service vulnerability in n/a, published on 14 Aug 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
DenyHosts 2.6 does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a client protocol version identification containing an IP address string, a different vector than CVE-2006-6301.
Which versions are affected by CVE-2007-4323?
It affects 1 product.
Products include Denyhosts Denyhosts.
How do I fix CVE-2007-4323?
No fix has been published for CVE-2007-4323 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-2007-4323 being exploited?
There is no known exploitation of CVE-2007-4323 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wch6-64mr-vfpg.