000030403 - RC4 algorithm vulnerability (CVE-2015-2808) in RSA Authentication Manager 8.1

Document created by RSA Customer Support Employee on Jun 14, 2016
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Article Number000030403
Applies ToRSA Product Set:  SecurID
RSA Product/Service Type:  Authentication Manager, SecurID Appliance
RSA Version/Condition:  8.1 SP1
Platform:  SUSE Enterprise Linux
O/S Version:  11 SP3
CVE IDCVE-2015-2808
Scanning Tool and VersionMcAfee Vulnerability Scanner v7.5
Link to Advisorieshttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2808
Alert ImpactNot Exploitable
Technical DetailsThe flaw exists but it is not exploitable
Technical Details ExplanationThe flaw exists but is not exploitable. If a browser which requires the RC4 cipher is used for connection to the authentication manager consoles, then authentication manager is currently capable of negotiating the connection with RC4. However, the vulnerability cannot be exploited because it’s impact is greatest in the first bytes encrypted with RC4 and diminishes, with the vulnerability disappearing after 100 encrypted bytes, if not sooner. The data passed between browsers and the authentication manager does not include any sensitive data in the first 100 bytes of RC4 encrypted data.
NotesIn cryptography, RC4 (Rivest Cipher 4 also known as ARC4 or ARCFOUR meaning Alleged RC4) is the most widely used software stream cipher and is used in popular Internet protocols such as Transport Layer Security (TLS).
For further information on RC4 refer to URL http://en.wikipedia.org/wiki/RC4



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