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Edimax BR-6104K UPnP Shell Command Injection Vulnerability
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Secunia Advisory:
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SA20169
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Release Date:
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2006-05-22
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Last Update:
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2006-05-26
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Popularity:
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6,695 views
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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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Unpatched
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| OS: | EDIMAX BR-6104K Broadband Router
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| CVE reference: | CVE-2006-2561
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Description:
Armijn Hemel has reported a vulnerability in Edimax BR-6104K, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable device.
The vulnerability is caused due to missing authentication of UPnP AddPortMapping requests and missing validation of the NewInternalClient parameter of the request. This can be exploited by hosts on the local network to execute shell commands e.g. "/sbin/reboot" on the device via specially crafted UPnP AddPortMapping requests containing shell commands in the NewInternalClient parameter.
Solution:
Disable the UPnP functionality if it is not required.
UPnP is reportedly disabled by default.
Provided and/or discovered by:
Armijn Hemel
Changelog:
2006-05-26: Added CVE reference.
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About this Secunia Advisory
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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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