Title: IBM HACMP Port Scan Denial of Service Vulnerability
Severity: HIGH
Description:
HACMP is a high availability cluster software package distributed and maintained by IBM.
A problem has been reported in the software package that could allow a denial of service to legitimate users of systems managed by the suite.
The problem is due to the handling of portscans by HACMP clusters, and the SNMP daemon. When an HACMP cluster is portscanned by another system, and the portscan uses the connect() function of TCP, the system in the cluster will fail. It is reported that this occurs on systems that have the HACMP ports connect() scanned, and the systems are unaffected by TCP SYN stealth scans.
Each system within the cluster that is scanned fails. This could result in assets managed by the cluster becoming unusable, thus denying service to legitimate users of the systems.
Affected Products:
- IBM HACMP 4.4.0
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