Android 4.3 Jelly Bean and v4.4 KitKat affected by critical VPN flaw: CERT-In

Android 4.3 Jelly Bean and v4.4 KitKat affected by critical VPN flaw: CERT-In
A "critical flaw" has been detected by the Computer Emergency Response Team of India (CERT-In) in the virtual private network (VPN) offered by Android operating systems in Indian cyberspace, leading to a "hijack" of the personal data of users.

Indian Internet security sleuths have alerted consumers of the vulnerability to the Web-based service which affects computer systems and mobile phones using the Android system.

The suspicious activity has been noticed by CERT-In in two Android versions - v4.3 known as 'Jelly Bean' and the latest v4.4 called 'Kit Kat'.

"A critical flaw has been reported in Android's (virtual private network) VPN implementation, affecting Android version 4.3 and 4.4 which could allow an attacker to bypass active VPN configuration to redirect secure VPN communications to a third party server or disclose or hijack unencrypted communications," CERT-In said in a latest advisory to users of this network.

CERT-In is the nodal agency to combat hacking, phishing and to fortify security-related defences of the Indian Internet domain.

VPN technology is used to create an encrypted tunnel into a private network over public Internet. Organisations and groups of people use such connections to enable employees or acquaintances to securely connect to enterprise networks from remote locations through multiple devices, from laptops to desktops to mobiles and tablets.

The agency said the current malicious application is capable of diverting the VPN traffic "to a different network address" and successful exploitation of this issue "could allow attackers to capture entire communication originating from affected device."

"It is noted that not all applications are encrypting their network communication. Still there is a possibility that attacker could possibly capture sensitive information from the affected device in plain text like email addresses, IMEI number, SMSes, installed applications," the advisory said.

Cyber-experts said that this anomaly could only lead to capture and viewing the data which is in plain text and Android applications directly connecting to the server using SSL will not be affected.

Websites which use 'https' in their URL will also be safe.

The cyber-agency has also suggested some countermeasures to beat this threat.

"Apply appropriate updates from the original equipment manufacturer, do not download and install applications from untrusted sources, maintain updated mobile security solution or mobile anti-virus solutions on the device, exercise caution while visiting trusted or untrusted URLs and do not click on the URLs received via SMS or email unexpectedly from trusted sources, or received from untrusted users" are some of the combat techniques which have been suggested by the agency.

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