A vulnerability classified as critical was found in Google Glass Xe5. Affected by this vulnerability is an unknown code of the component QR Code Reader. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Google Glass before XE6 does not properly restrict the processing of QR codes, which allows physically proximate attackers to modify the configuration or redirect users to arbitrary web sites via a crafted symbol, as demonstrated by selecting a Wi-Fi access point in order to conduct a man-in-the-middle attack.

The weakness was shared 07/17/2013 by Marc Rogers with Lookout Mobile Security as Hacking the Internet of Things for Good. as confirmed advisory (Website). It is possible to read the advisory at blog.lookout.com. The vendor cooperated in the coordination of the public release. This vulnerability is known as CVE-2013-4872 since 07/18/2013. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/07/2018). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. Due to its background and reception, this vulnerability has a historic impact. The advisory points out:

Both the vulnerability and its method of delivery are unique to Glass as a consequence of it becoming a connected thing.

A public exploit has been developed by Marc Rogers in QR Code and been published immediately after the advisory. It is possible to download the exploit at vimeo.com. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 19 days. During that time the estimated underground price was around $25k-$100k.

Upgrading to version XE6 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. The advisory contains the following remark:

Google demonstrated a first-class vulnerability management process that identified, fixed and updated the devices quickly, efficiently and silently.

The vulnerability is also documented in the vulnerability database at X-Force (85804). Additional details are provided at allthingsd.com.

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• Google

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• Glass

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• Xe5

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• free

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