CVE-2000-1216: Buffer Overflow
Buffer overflow in portmir for AIX 4.3.0 allows local users to corrupt lock files and gain root privileges via the echoerror routine.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
portmir (AIX)from your environment.Uninstall or remove the vulnerable 'portmir' binary from AIX 4.3.0 systems if the component is not required.
- Configuration
Restrict execution of the portmir binary to the root user (for example, ensure ownership is root:root and set permissions to 700 or otherwise remove execute permission for non-root users).
portmir (AIX 4.3.0) file permissions / executable access = root-only execute - Compensating control
Restrict local unprivileged user access to hosts running portmir (for example, limit local account shells, apply local ACLs, or use host access controls) so untrusted users cannot execute the binary until a vendor fix is available.
- Operational
Audit affected systems for signs of local privilege escalation or root compromise. If compromise is suspected, isolate the system, restore from known-good backups, and rotate any credentials or keys that may have been exposed.
Event History
Frequently Asked Questions
What is the severity of CVE-2000-1216?
CVE-2000-1216 is considered a critical vulnerability due to its potential to allow local users to gain root privileges.
How do I fix CVE-2000-1216?
To fix CVE-2000-1216, it is recommended to upgrade to a patched version of AIX that resolves the buffer overflow issue.
Who is affected by CVE-2000-1216?
CVE-2000-1216 primarily affects local users of IBM AIX version 4.3.0.
What impact does CVE-2000-1216 have on systems?
CVE-2000-1216 allows local users to corrupt lock files, which can lead to unauthorized root access and system compromise.
What is the nature of the vulnerability in CVE-2000-1216?
CVE-2000-1216 is a buffer overflow vulnerability found in portmir's echo_error routine.