Security Bulletin: IBM DataPower Gateway is affected by a vulnerability (CVE-2018-1665)

Summary

IBM DataPower Gateway has addressed the following vulnerability:
CVE-2018-1665

Vulnerability Details

CVEID:CVE-2018-1665
DESCRIPTION: IBM DataPower Gateways uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.
CVSS Base Score: 5.9
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/144891&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

Workarounds and Mitigations

The fix removes DES-based ciphersuites from the set supported by default by the DataPower management interface. To remove these ciphersuites manually, perform the following steps:

1. Create a new SSL server profile in default domain.
2. Remove the 5 3DES ciphers listed at the bottom of default cipher list (vis. ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, DHE_DSS_WITH_3DES_EDE_CBC_SHA, DHE_RSA_WITH_3DES_EDE_CBC_SHA, RSA_WITH_3DES_EDE_CBC_SHA).
3. Create new/assign existing identification credentials for this server profile.
4. Save the new SSL server profile.
5. While still in the default domain, navigate to Network->Management->Web Management Service.
6. In the Advanced tab, ensure Custom SSL server type is “Server Profile”.
7. Set custom SSL server profile property to the newly created SSL server profile in step #4.

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

Srinivasarao Kotipalli & Jeremy Soh

Change History

7 December 2018: Initial version published
21 December 2018: Fixed type

*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.

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