TP-LINK TL-SC3171 Authentication Bypass

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TP-LINK  
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1.Advisory Information  
Title: TP-LINK TL-SC3171 Vulnerability  
Date Published: 12/06/2013  
Date of last updated: 12/06/2013  
  
2.Vulnerability Description  
The next vulnerability has been found in this device:  
-CVE-2013-3688. Authentication Bypass Issues(CWE-592) and Execution with Unnecessary Privileges(CWE-250).  
  
3.Affected Products  
-CVE-2013-3688. The following product are affected: TP-LINK TL-SC3171  
It’s possible others models are affected but they were not checked.  
  
4.PoC  
4.1.Execute Remote Command bypassing authentication  
CVE-2013-3688, Execute Remote Command bypassing authentication.  
We have found that is possible to reboot this kind of devices remotely. The attack vector is the following one:  
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http://xx.xx.xx.xx/cgi-bin/reboot  
http://xx.xx.xx.xx/cgi-bin/hardfactorydefault  
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In the first one you will get blank page and you can’t re-login until the device is reboot.  
In the second one, you will get a victory message and of course, in the next login you should introduce factory settings.  
  
5.Credits  
-CVE-2013-3688, was discovered by Eliezer Varadé Lopez, Javier Repiso Sánchez and Jonás Ropero Castillo.   
  
6.Report Timeline  
-2013-05-31: Students team notifies the TP-Link Customer Support of the vulnerability. No reply received.  
-2013-06-03: Students asks for a reply.   
-2013-06-04: TP-Link answers saying Coresecurity reported this vulnerability before and this has been corrected in a new beta firmware version.  
-2013-06-04: Students answer to the vendor saying that this vulnerability is different from the Coresecurity vulnerabilities.  
-2013-06-05: TP-Link answers saying this vulnerability is the same as the vulnerability reported by Coresecurity.  
-2013-06-05: Students respond by explaining the details of the vulnerability and confirming that the vulnerability is different.  
-2013-06-06: TP-Link answer confirming that the vulnerability is fixed with the latest patch for the reported vulnerabilities generated by Coresecurity. The beta version is available on the website of TP-Link   
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