A vulnerability has been found in HTC Droid Incredible FRF91 and classified as critical. Affected by this vulnerability is the function WPA2 PSK Passphrase of the component 3g Mobile Hotspot. The manipulation of the argument 1234567890 with an unknown input leads to a credentials management vulnerability. The CWE definition for the vulnerability is CWE-255. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

The 3G Mobile Hotspot feature on the HTC Droid Incredible has a default WPA2 PSK passphrase of 1234567890, which makes it easier for remote attackers to obtain access by leveraging a position within the WLAN coverage area.

The weakness was disclosed 06/19/2013 by Andreas Kurtz, Daniel Metz and Felix Freiling with Erlangen University as not defined document (Website). It is possible to read the advisory at www1.cs.fau.de. This vulnerability is known as CVE-2013-4622 since 06/19/2013. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at support.verizonwireless.com. It is declared as proof-of-concept.

It is possible to mitigate the problem by applying the configuration setting Change Password. It is possible to mitigate the problem by adding an authentication mechanism. The best possible mitigation is suggested to be adding authentication.

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• HTC

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• Droid Incredible

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• FRF91

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