Two different critical vulnerabilities were found in the RSA Authentication SDK (software development kit), patch them asap.
The first bug, tracked as CVE-2017-14377, is authentication bypass that affects the RSA Authentication Agent for Web for Apache Web Server. The flaw could be exploited by a remote unauthenticated user by sending a crafted packet that triggers a validation error, in this way it can gain access to resources on the target.
“Due to an improper input validation flaw in RSA Authentication Agent for Web for Apache Web Server, a remote malicious user can potentially bypass user authentication and gain unauthorized access to resources protected by the agent. The privilege level of an unauthorized user who gains access depends on the authorization policy set by the underlying application that is using the agent.” reads the security advisory.
This vulnerability is only present when the RSA Authentication Agent for Web for Apache Web Server is configured to use the TCP protocol to communicate with the RSA Authentication Manager server. UDP implementation, which is the default configuration, is not vulnerable. Please refer to the RSA Authentication Agent 8.x for Web for Apache Web Server Installation and Configuration Guide for configuration details.”
It is possible to mitigate the issue by configuring the authentication agent to use UDP, RSA has already released a patch at the following address:[…]
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