CVE-2011-2717 Command injection in dhcpv6
Remote DHCP servers can execute arbitrary commands on systems using the dhcpv6 client by injecting shell metacharacters into hostname responses.
- 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-2011-2717?
CVE-2011-2717 is a critical command injection vulnerability in Redhat Enterprise Linux, published on 27 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The DHCPv6 client (dhcp6c) as used in the dhcpv6 project through 2011-07-25 allows remote DHCP servers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message.
Weakness: CWE-74
Which versions are affected by CVE-2011-2717?
It affects 2 products.
Products include Linux Dhcp6c, Redhat Enterprise Linux.
How do I fix CVE-2011-2717?
No fix has been published for CVE-2011-2717 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2011-2717 being exploited?
There is no known exploitation of CVE-2011-2717 in the wild and no public exploit code.
Sources
Also known as GHSA-4wfc-527w-m6mj.