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Wi-Fi Direct Flaw Exposes Android Devices to DoS Attacks

27/01/2015 by Sharon Shahzad

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Researchers from Core Security have identified a vulnerability that can be remotely exploited for denial-of-service (DoS) attacks against certain Android devices.

The vulnerability is an uncaught exception (CVE-2014-0997) that could cause devices to reboot. According to the security firm, an attacker can leverage this flaw when the targeted Android phone is scanning for devices using Wi-Fi Direct, the standard that allows devices to connect with each other without having to go through an access point.

“An attacker could send a specially crafted 802.11 Probe Response frame causing the Dalvik subsystem to reboot because of an Unhandle Exception on WiFiMonitor class,” Core Security wrote in an advisory published on Monday.

The vulnerability has been successfully reproduced on a Nexus 4 and a Nexus 5 running Android 4.4.4, on an LG D806 and a Samsung SM-T310 running Android 4.2.2, and on a Motorola RAZR HD with Android 4.1.2 installed. Other devices might also be affected, but the flaw does not impact Android 5.0.1 and Android 5.0.2.

Researchers informed Google of the vulnerability in late September 2014. In mid-October, the Android security team told Core Security that the issue was classified as “low severity.” The security firm does not agree with this classification, but Google seems to maintain its position.

The Android security team says it currently does not have a timeline for releasing a fix.

Until the flaw is addressed, Core Security advises users to avoid utilizing Wi-Fi Direct or update their Android installations to a version that is not vulnerable.

Earlier this month, Google announced that it’s no longer patching vulnerabilities affecting older versions of the WebKit component. The search giant has decided not to patch flaws in the pre-KitKat WebKit because the company believes it’s no longer practical.

While some experts have condemned Google for exposing hundreds of millions of devices to cyberattacks, others believe this move will reduce the negative impact of Android fragmentation.

This article has been extracted from http://www.securityweek.com, please click on this link to read the article in full http://www.securityweek.com/wi-fi-direct-flaw-exposes-android-devices-dos-attacks

Montash is a multi-award winning global technology recruitment business. Specialising in permanent and contract positions across mid-senior appointments across a wide range of industry sectors and IT functions, including:

ERP Recruitment, BI & Data Recruitment, Information Security Recruitment, IT Architecture & Strategy Recruitment , Energy Technology Recruitment, Demand IT and Business Engagement Recruitment, Digital and E-commerce Recruitment, Leadership Talent, Infrastructure and Service Delivery Recruitment, Project and Programme Delivery Recruitment.

Montash is headquartered in Old Street, London, in the heart of the technology hub. Montash has completed assignments in over 30 countries and has appointed technical professionals from board level to senior and mid management in permanent and contract roles.

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