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IBM Power 5 Service Processor privilege escalation vulnerability

Vulnerability Note VU#194604

Original Release Date: 2012-12-12 | Last Revised: 2013-01-02


IBM Power 5 Service Processor contain a vulnerability which could allow an attacker to operate with elevated privileges.


IBM's security advisory states, "A security issue has been identified on IBM Power 5 Systems such that the firewall code does not get executed in certain network configurations leading to elevated privilege. The issue only exists on Service Processor for IBM Power 5 Systems listed below and has not been found to exist in any other IBM System."


An attacker with access to the IBM Power 5 Service Processor could escalate their privileges allowing them to  to perform administrative functions on the system.



The vendor has stated that this vulnerability has been address in SF240_418_382. Users are advised to upgrade to SF240_418_382 or higher. The fix can be obtained from FixCentral by providing the MTM and current fix level.

IBM's security advisory states the following workaround, "Configure (any) Static IP addresses on at least one Ethernet interface of the IBM Service processor."

Vendor Information

IBM's security advisory states the following affected products and versions are affected by this vulnerability:
Platforms (MTM) Impacted: 9117-570, 9110-51A, 9111-520, 9131-52A, 9113-550, 9133-55A, 9116-561, 9111-285, 9115-505, 9110-510, 9118-575, 9123-710, 9124-720 9405-520, 9406-520, 9407-515, 9406-525, 9406-550, 9406-570


IBM Corporation Affected

Notified:  October 10, 2012 Updated: December 04, 2012



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

Vendor References

CVSS Metrics

Group Score Vector
Base 7.9 AV:A/AC:M/Au:N/C:C/I:C/A:C
Temporal 6.2 E:POC/RL:OF/RC:C
Environmental 1.8 CDP:LM/TD:L/CR:ND/IR:ND/AR:ND



Thanks to Brian Smith for reporting this vulnerability.

This document was written by Michael Orlando.

Other Information

CVE IDs: CVE-2012-4856
Date Public: 2012-11-19
Date First Published: 2012-12-12
Date Last Updated: 2013-01-02 13:43 UTC
Document Revision: 15

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