= TP-LINK 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 Its 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: _____________________________________________________________________________ http://xx.xx.xx.xx/cgi-bin/reboot http://xx.xx.xx.xx/cgi-bin/hardfactorydefault _____________________________________________________________________________ In the first one you will get blank page and you cant 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 Varad Lopez, Javier Repiso Snchez and Jons 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