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Blue Coat WinProxy Multiple Vulnerabilities
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Secunia Advisory:
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SA18288
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Release Date:
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2006-01-06
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | WinProxy 4
WinProxy 5.x
WinProxy 6.x
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| | CVE reference: | CVE-2005-3187 (Secunia mirror)
CVE-2005-3654 (Secunia mirror)
CVE-2005-4085 (Secunia mirror)
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Description:
Some vulnerabilities have been reported in Blue Coat WinProxy, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
1) A design error in the HTTP proxy in the handling of long HTTP requests can cause an out-of-bounds memory access. This can be exploited to crash the service via an overly long HTTP request of approximately 32,768 bytes.
The vulnerability has been reported in version 6.0. Previous versions are reportedly not affected.
2) A boundary error exists in the HTTP proxy in the handling of an overly long "Host" header in a HTTP request. This can potentially be exploited for arbitrary code execution.
The vulnerability has been reported in version 6.0. Prior versions may also be vulnerable.
3) A design error in the Telnet proxy when handling a long input string containing the "0xFF" character can cause heap corruption. This can be exploited to crash the service.
The vulnerability has been reported in version 6.0. Prior versions may also be vulnerable.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.
Solution:
Update to version 6.1a.
http://www.winproxy.com/
Provided and/or discovered by:
1-2) FistFuXXer
3) Discovered by anonymous and reported via iDEFENSE.
Original Advisory:
iDEFENSE:
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=363
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=364
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=365
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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2 Related Secunia Security Advisories
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1. BlueCoat WinProxy Deterministic Network Enhancer Privilege Escalation
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2. Blue Coat WinProxy CONNECT Buffer Overflow Vulnerability
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If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.
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