[ISN] RSA WebID agent can't read Unicode

From: InfoSec News (isnat_private)
Date: Thu Oct 25 2001 - 01:40:48 PDT

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    By John Leyden
    Posted: 24/10/2001 at 13:49 GMT
    RSA's Internet authentication product can be bypassed using a
    combination of Unicode characters which IIS recognises but RSA's
    security technology fails to decode.
    RSA's WebID agent is supposed to deny access to a corporate intranet
    until a user is properly authenticated by a SecurID server.
    The potentially serious security vulnerability in RSA's product was
    discovered by ProCheckUp, a UK security consultancy.
    A variation of the same Unicode directory transversal-style exploit
    would allow a hacker to obtain a directory listing.
    Richard Brain, technical director of ProCheckUp, said the
    vulnerability meant that unauthenticated users could be able to read
    files and even execute programs on a supposedly secure server.
    The issue is important because the Web agent of SecurID is used by
    government organisations and the like to secure access to intranets or
    for Outlook Web access.
    RSA Security has issued a new release of the C libraries used in
    SecurID which guards against the flaw, according to ProCheckUp. (RSA
    has yet to respond to our call asking for comment).
    Users are advised to the latest version ACE/Agent for Windows or
    ACE/Agent for Windows 2000 to protect themselves against the
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    This archive was generated by hypermail 2b30 : Thu Oct 25 2001 - 03:06:54 PDT