The MD5 "SLOTH" vulnerability on TLS 1.2 affects IBM Integrated Management Module II (IMM2) for BladeCenter, System x, and FLEX Systems.
Summary
The MD5 "SLOTH" vulnerability on TLS 1.2 affects IBM Integrated
Management Module II (IMM2) for BladeCenter, System x, and FLEX
Systems.
Vulnerability Details
CVE-ID: CVE-2015-7575
Description: The TLS protocol could allow
weaker than expected security caused by a collision attack when
using the MD5 hash function for signing a ServerKeyExchange message
during a TLS handshake. An attacker could exploit this
vulnerability using man-in-the-middle techniques to impersonate a
TLS server and obtain credentials.
CVSS Base Score: 7.1
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/109415
for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N)
Affected products and versions
| Product |
Affected Version |
| IBM Integrated Management Module II (IMM2) for
BladeCenter, System x, and FLEX Systems |
1aoo |
Remediation/Fixes
Firmware fix versions are available on Fix Central: http://www-933.ibm.com/support/fixcentral/
| Product |
Fix Version |
IBM Integrated Management Module II (IMM2) for
System x, BladeCenter and FLEX Systems
ibm_fw_imm2_1aoo70h-5.40_bc-anyos_noarch
ibm_fw_imm2_1aoo70h-5.40_anyos_noarch |
1aoo70h-5.40 |
You should verify applying this fix does not cause any
compatibility issues. The fix disables MD5 signature hash by
default. If you change the default setting after applying the fix
you will expose yourself to the attack described above. IBM
recommends that you review your entire environment to identify
other areas where you have enabled the MD5 signature hash and take
appropriate mitigation and remediation actions.
Workarounds and Mitigations
None.
References
Related Information
IBM
Secure Engineering Web Portal
IBM Product Security
Incident Response Blog
Acknowledgement
Reported to IBM by Karthikeyan Bhargavan at INRIA in Paris,
France.
Change History
23 March 2016: Original Version Published
* The CVSS Environment Score is customer environment specific
and will ultimately impact the Overall CVSS Score. Customers can
evaluate the impact of this vulnerability in their environments by
accessing the links in the Reference section of this Security
Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams
(FIRST), the Common Vulnerability Scoring System (CVSS) is an
"industry open standard designed to convey vulnerability severity
and help to determine urgency and priority of response." IBM
PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND,
INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE
IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
References
On
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
BladeCenter:Operating system independent / None
System x:Operating system independent / None
PureFlex System and Flex System:Operating system independent / None
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