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RealVNC Multiple Connections Denial of Service Vulnerability
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Secunia Advisory:
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SA13143
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Release Date:
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2004-11-09
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Last Update:
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2005-02-28
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Popularity:
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10,475 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | RealVNC 4.x
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| CVE reference: | CVE-2004-1750
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Description:
A vulnerability has been discovered in RealVNC, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the connection handling and can be exploited by establishing around 100 connections to port 5800/tcp or port 5900/tcp.
Successful exploitation prevents further connections from being established.
The vulnerability has been confirmed in version 4.0 for Windows. Other versions may also be affected.
Solution:
Restrict access to the services.
Provided and/or discovered by:
Originally discovered by:
Allan Zhang
Reported to also affect port 5800/tcp by:
Dr_insane
Changelog:
2005-02-28: Added CVE reference.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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