Security Bulletin: Vulnerabilities in SSL affect IBM DataPower Gateway appliances (CVE-2014-3570, CVE-2015-0204)

Summary

SSL vulnerabilities were disclosed on January 8, 2015 by the OpenSSL Project. This includes “FREAK: Factoring Attack on RSA-EXPORT keys" TLS/SSL client and server vulnerability. IBM DataPower Gateway has addressed the corresponding applicable CVEs.

Vulnerability Details

CVEID: CVE-2014-3570 DESCRIPTION: An unspecified error in OpenSSL related to the production of incorrect results on some platforms by Bignum squaring (BN_sqr) has an unknown attack vector and impact.
CVSS Base Score: 2.6
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/#/vulnerabilities/99710 or the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:N/C:N/I:P/A:N)

CVEID: CVE-2015-0204 DESCRIPTION: A vulnerability in the OpenSSL ssl3_get_key_exchange function could allow a remote attacker to downgrade the security of certain TLS connections. An OpenSSL client accepts the use of an RSA temporary key in a non-export RSA key exchange ciphersuite. This could allow a remote attacker using man-in-the-middle techniques to facilitate brute-force decryption of TLS/SSL traffic between vulnerable clients and servers.

This vulnerability is also known as the FREAK attack.

CVSS Base Score: 4.3
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/#/vulnerabilities/99707 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

Affected Products and Versions

IBM DataPower Gateway appliances all versions through 6.0.0.12, 6.0.1.8, 7.0.0.5, 7.1.0.3

Remediation/Fixes

Fix is available in versions 6.0.0.13, 6.0.1.9, 7.0.0.6, 7.1.0.4. Refer to APAR IT06901 and APAR IT06902 for URLs to download the fix.

You should verify applying this fix does not cause any compatibility issues.

_For DataPower customers using versions 5.x and older versions, __IBM recommends upgrading to a fixed, supported version/release/platform of the product. _Customers on DataPower firmware version 5.x, contact customer support.

Workarounds and Mitigations

DataPower as SSL client - None

DataPower as SSL server - Refer to this reminder on Disable weak export ciphers