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Security Bulletin: IBM Flex System Manager (FSM) is affected by a curl vulnerability (CVE-2016-0755)

Created by Vern Yetzer on

Security Bulletin


Summary

A security vulnerability has been discovered in curl that is embedded in the IBM FSM. This bulletin addresses the vulnerability.

Vulnerability Details

CVEID: CVE-2016-0755
DESCRIPTION: Libcurl could allow a remote attacker to bypass security restrictions, caused by the failure to check NTLM-authenticated proxy connections for reuse. An attacker could exploit this vulnerability to use a proxy connection for a different authenticated client username.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110290 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

Flex System Manager 1.3.4.x
Flex System Manager 1.3.3.x
Flex System Manager 1.3.2.x

Remediation/Fixes

IBM recommends updating the FSM using the instructions referenced in this table.

      Product
      VRMF
      APAR
      Remediation
Flex System Manager
      1.3.4.x
IT15536
Verify that Java updates have been installed, then install fsmfix1.3.4.0_IT15533_IT15534_IT15535_IT15536_IT16023.

Instructions for installing and verifying installation of Java updates can be found in Technote 761981453
Flex System Manager
      1.3.3.x
IT15536
Verify that Java updates have been installed, then install fsmfix1.3.3.0_IT15533_IT15534_IT15535_IT15536_IT16023.

Instructions for installing and verifying installation of Java updates can be found in Technote 736218441
Flex System Manager
      1.3.2.x
IT15536
Verify that Java updates have been installed, then install fsmfix1.3.2.0_IT15533_IT15534_IT15535_IT15536_IT16023.

Instructions for installing and verifying installation of Java updates can be found in Technote 736218441
For 1.1.x.x, 1.2.x.x, 1.3.0.x and 1.3.1.x IBM recommends upgrading to a fixed, supported version/release of the product.

You should verify applying this fix does not cause any compatibility issues. The fix disables MD5 signature hash by default. 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

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

18 July 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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

4781 / 71635

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Document Information

Modified date:
17 June 2018

UID

isg3T1023970

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