CERT/CC Vulnerability Note VU#475445: Potential Impact on RSA Products

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CVE-2017-11427, CVE-2017-11428, CVE-2017-11429, CVE-2017-11430, CVE-2018-0489, CVE-2018-7340

RSA Product Set:  All RSA Products that support SAML

Researchers have identified and reported a vulnerability (on February 27, 2018) that may affect certain Service Provider (“SP”) implementations of SAML-based single-sign-on (“SSO”) systems.  SAML libraries, affected by this vulnerability, may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

RSA has investigated this issue to identify any potential impact to RSA software and cloud based services (“RSA products”) and will update this article with any new information as it becomes available, including impacted RSA products and remediation steps.  Only the RSA products that support SAML-based SSO are listed here. RSA products that do not support SAML are not impacted by these vulnerabilities and are not listed in this article.
 

References:

• CERT/CC Vulnerability Note:  https://www.kb.cert.org/vuls/id/475445
• Researcher’s (Duo Labs) blog post:  https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations

Read and use the information in this RSA Security Advisory to assist in avoiding any situation that might arise from the problems described herein. If you have any questions regarding this product alert, contact RSA Software Technical Support at 1- 800 995 5095. RSA Security LLC and its affiliates, including without limitation, its ultimate parent company, Dell EMC, distributes RSA Security Advisories in order to bring to the attention of users of the affected RSA products, important security information. RSA recommends that all users determine the applicability of this information to their individual situations and take appropriate action. The information set forth herein is provided 'as is' without warranty of any kind. RSA disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement. In no event, shall RSA, its affiliates or suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if RSA, its affiliates or suppliers have been advised of the possibility of such damages. Some jurisdictions do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation may not apply.