Edimax BR-6104K UPnP AddPortMapping security bypass

edimax-upnp-security-bypass (26709) The risk level is classified as MediumMedium Risk


The Edimax BR-6104K Broadband Router could allow a remote attacker to bypass security restrictions and execute arbitrary shell commands or cause a denial of service on an affected device, caused by a vulnerability in the Universal Plug and Play (UPnP) service. An attacker could exploit this vulnerability by sending a specially-crafted AddPortMapping request with an invalid 'NewInternalClient' parameter.


Bypass Security


No remedy available as of September 1, 2014.


  • Edimax Technologies Web site: Edimax BR-6104K.
  • Securityview Web site: How does the UPnP flaw works.
  • CVE-2006-2561: Edimax BR-6104K router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter (possibly within NewInternalClient), which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.
  • SA20169: Edimax BR-6104K UPnP Shell Command Injection Vulnerability

Platforms Affected:

  • EDIMAX Edimax BR-6104K Broadband Router


May 22, 2006

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