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dhcpcd: Character expansion vulnerability
| Package(s): | dhcpcd |
CVE #(s): | |
| Created: | November 19, 2002 |
Updated: | January 10, 2003 |
| Description: |
dhcpcd is an RFC2131 and RFC1541 compliant DHCP client daemon.
dhcpcd has the ability to execute an external script named
/sbin/dhcpcd-<interface>.exe when assigning a new IP address to a network
interface. This script sources a file named
/var/lib/dhcpcd/dhcpcd-<interface>.info that contains several shell
variables and assigments with DHCP information.
Simon Kelley pointed out a vulnerability in the way quotes inside these
assignments are treated. By exploiting this, a malicious DHCP server (or
attackers able to spoof DHCP responses) can execute arbitrary shell
commands on the DHCP client (which is run by root). |
| Alerts: |
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