Short Name |
DHCP:SERVER:ISC-CMD-INJ |
---|---|
Severity |
High |
Recommended |
No |
Recommended Action |
Drop |
Category |
DHCP |
Keywords |
ISC Network Configuration Script Command Injection |
Release Date |
2011/06/20 |
Update Number |
1942 |
Supported Platforms |
idp-4.0+, isg-3.4+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
This signature detects attempts to exploit a known vulnerability against ISC DHCP server. It is due to insufficient validation of responses sent by ISC DHCP server. A successful attack can lead to arbitrary command injection on the DHCP client.
The ISC DHCP client 'dhclient' is prone to a remote code-execution vulnerability because it fails to properly escape certain shell meta-characters from DHCP server responses. A remote attacker can exploit this issue through a rogue DHCP server. Successfully exploiting this issue allows a remote attacker to execute arbitrary code with superuser privileges, resulting in a complete compromise of the affected computer.