Sun Java System Web Server Protocol Flaw in SSL Renegotiation Lets Remote Users Conduct Man-in-the-Middle Attacks
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SecurityTracker Alert ID: 1023426 |
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SecurityTracker URL: http://securitytracker.com/id/1023426
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CVE Reference:
CVE-2009-3555
(Links to External Site)
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Date: Jan 11 2010
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Impact:
Modification of user information
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Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes
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Version(s): 6.1, 7.0
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Description:
A vulnerability was reported in Sun Java System Web Server. A remote user can conduct a man-in-the-middle attack on SSL session renegotiation.
A remote user with the ability to conduct a man-in-the-middle attack can exploit a flaw in the underlying SSL/TLS protocol to inject arbitrary plain text into the exchange between the client and the server, with the arbitrary data as a prefix to the session.
The vulnerability resides in the TLS 1.0 or later and SSLv3 protocols.
Marsh Ray of PhoneFactor and Martin Rex independently reported this vulnerability.
[Editor's note: The flaw resides in the protocol and not in the protocol implementation. Some vendors are implementing a temporary workaround that prohibits session renegotiation until the protocol itself can be modified. Several protocol implementations are affected, including OpenSSL, GnuTLS, Network Security Services, and Java Secure Socket Extension.]
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Impact:
A remote user can with the ability to conduct a man-in-the-middle attack can inject arbitrary plain text data into the exchange, preceding the session data.
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Solution:
The vendor has issued a fix.
SPARC Platform
* Sun Java System Web Server 7.0 update 7 or later
x86 Platform
* Sun Java System Web Server 7.0 update 7 or later
Linux
* Sun Java System Web Server 7.0 update 7 or later
HP-UX
* Sun Java System Web Server 7.0 update 7 or later
Windows
* Sun Java System Web Server 7.0 update 7 or later
The vendor's advisory is available at:
http://sunsolve.sun.com/search/document.do?assetkey=1-66-274990-1
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Vendor URL: sunsolve.sun.com/search/document.do?assetkey=1-66-274990-1 (Links to External Site)
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Cause:
Authentication error
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Underlying OS: Linux (Any), UNIX (HP/UX), UNIX (Solaris - SunOS), Windows (Any)
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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