CVE-2000-0423: Buffer Overflow
Buffer overflow in Netwin DNEWSWEB CGI program allows remote attackers to execute arbitrary commands via long parameters such as group, cmd, and utag.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
NetWin DNewsWebfrom your environment.Uninstall NetWin DNewsWeb or remove the DNEWSWEB CGI component if it is not required.
- Configuration
Disable the DNEWSWEB CGI program or its CGI endpoint in the webserver configuration to prevent processing of attacker-supplied parameters.
NetWin DNewsWeb (DNEWSWEB CGI) DNEWSWEB CGI enabled = false - Compensating control
Block or restrict HTTP(S) access to the DNEWSWEB CGI endpoints at the network perimeter to trusted administrative IPs and/or deploy a web application firewall to drop requests with excessively long parameters (especially for 'group', 'cmd', and 'utag').
- Operational
If the vulnerable CGI was accessible, assume possible compromise: isolate affected hosts, perform forensic analysis or rebuild from known-good images, and rotate any potentially exposed credentials.
Event History
Frequently Asked Questions
What is the severity of CVE-2000-0423?
CVE-2000-0423 has a high severity rating due to its potential for remote command execution.
How do I fix CVE-2000-0423?
To fix CVE-2000-0423, update the Netwin DNEWS software to a version that addresses this buffer overflow vulnerability.
What specific software versions are affected by CVE-2000-0423?
CVE-2000-0423 specifically affects version 5.3 of the Netwin DNEWS software.
Can CVE-2000-0423 be exploited remotely?
Yes, CVE-2000-0423 can be exploited remotely due to the vulnerabilities in the CGI program.
What are the potential impacts of exploiting CVE-2000-0423?
Exploiting CVE-2000-0423 can allow attackers to execute arbitrary commands on the affected system.