Caldera DHCP Package Format String Vulnerabililty

BID:2215

Info

Caldera DHCP Package Format String Vulnerabililty

Bugtraq ID: 2215
Class: Unknown
CVE: CVE-2001-0181
Remote: Yes
Local: No
Published: Jan 15 2001 12:00AM
Updated: Jul 11 2009 04:46AM
Credit: This vulnerability was first announced in a Caldera Security Advisory on January 15, 2001 via Bugtraq.
Vulnerable: SCO eServer 2.3.1
SCO eDesktop 2.4
Caldera OpenLinux Desktop 2.3
Not Vulnerable:

Discussion

Caldera DHCP Package Format String Vulnerabililty

DHCP is the Dynamic Host Configuration Protocol, an open source, freely available, RFC specified networking protocol for host management. It is included with most versions of the UNIX Operating System.

A problem with the Caldera implementation could create the possibility of a format string attack. The problem affects both the DHCP daemon and client, and involves string formatting when passed through the error logging code. It is possible to pass custom crafted packets to both the DHCP daemon and DHCP client that will result in an error, and pass the formatted strings to a static buffer. This buffer will then be filled and overflowed, overwriting variables on the stack and potentially executing arbitrary code. This problem makes it possible for a user with malicious motives to execute arbitrary code, potentially gain access, and elevated privileges.

Exploit / POC

Caldera DHCP Package Format String Vulnerabililty

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].

Solution / Fix

Caldera DHCP Package Format String Vulnerabililty

Solution:
Upgrades available:


Caldera OpenLinux Desktop 2.3

SCO eServer 2.3.1

SCO eDesktop 2.4

References

Caldera DHCP Package Format String Vulnerabililty

References:
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