CVE-2000-0421: High severity Bugzilla vulnerability
The processbug.cgi script in Bugzilla allows remote attackers to execute arbitrary commands via shell metacharacters.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
Bugzilla/process_bug.cgifrom your environment.Remove or rename the process_bug.cgi file from the server if the functionality is not required, or replace it with a safe/validated implementation.
- Configuration
Disable the process_bug.cgi CGI handler in the webserver or Bugzilla configuration so it cannot be invoked (remove execution permissions or block its URL).
Bugzilla (process_bug.cgi) process_bug.cgi enabled = false - Compensating control
Block or restrict access to the process_bug.cgi endpoint using network controls (firewall, WAF, reverse proxy, or webserver access controls) to allow only trusted IPs or deny access entirely.
- Operational
Audit server and application logs for signs of arbitrary command execution or compromise; if compromise is suspected, isolate the host, perform forensic analysis, restore from known-good backups, and rotate any credentials that may have been exposed.
Event History
Frequently Asked Questions
What is the severity of CVE-2000-0421?
CVE-2000-0421 is considered to be a high severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2000-0421?
To fix CVE-2000-0421, upgrade Bugzilla to version 2.8.1 or later to mitigate the command execution vulnerability.
What are the potential impacts of CVE-2000-0421?
The potential impacts of CVE-2000-0421 include unauthorized access and control over the affected Bugzilla instance due to arbitrary command execution.
Who is affected by CVE-2000-0421?
CVE-2000-0421 affects users of Bugzilla version 2.8, allowing remote attackers to exploit the vulnerability.
Is CVE-2000-0421 a common vulnerability?
CVE-2000-0421 is recognized as a notable vulnerability within Bugzilla, particularly due to its age and the ease of exploitation.