Title: RSA BSAFE SSL-J Authentication Bypass Vulnerability
Severity: CRITICAL
Description:
A vulnerability exists in several versions of RSA's SSL-J Software Development Kit (SDK) that can enable an attacker to bypass SSL client authentication.
Under certain conditions, if an error occurs during the SSL client-server handshake, the SSL session key may be stored in a cache rather than being discarded. Once cached, this session key can be used by an attacker to cause a server to skip the full client authentication scheme, using a much shorter one. This effectively allows the attacker to fully bypass the client authentication.
On systems that rely solely on the authentication mechanism provided by SSL, this could enable an attacker to perform unauthorized actions.
Additional technical details are forthcoming.
Affected Products:
- Cisco iCDN 2.0.0
- RSA Security BSAFE SSL-J SDK 3.0.0
- RSA Security BSAFE SSL-J SDK 3.0.1
- RSA Security BSAFE SSL-J SDK 3.1.0
References:
- Cisco Systems: Cisco Call Manager Express
- RSA Security: RSA Homepage
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