Feeds

Banking apps: insecure and badly written, say researchers

Buggy code, bad security

Combat fraud and increase customer satisfaction

Security researchers IO Active are warning that many smartphone banking apps are leaky and need to be fixed.

Testing 40 iOS-based banking apps from 60 banks around the world, the research summary is pretty nerve-wracking:

  • 40 per cent are vulnerable to man-in-the-middle attacks, because they don't validate the authenticity of SSL certificates presented by the server;
  • 20 per cent lacked “Position Independent Executable (PIE) and Stack Smashing Protection enabled”, which IO Active says is used to help mitigate memory corruption attacks;
  • Half the apps are vulnerable to cross-site-scripting (XSS) attacks;
  • Over 40 per cent leave sensitive information in the system log; and
  • Over 30 per cent use hard-coded credentials of some kind.

Most worrying, however, are a couple of 90 per cent statistics: the number of apps that included non-SSL links, and the number that lack jailbreak detection. Even those with detection could still be installed: “All of the applications could be installed on a jailbroken iOS device. This helped speed up the static and black box analysis”, writes IO Active's Ariel Sanchez.

By including non-SSL links in the apps, Sanchez says, an attacker could “intercept the traffic and inject arbitrary JavaScript/HTML code in an attempt to create a fake login prompt or similar scam.”

“Moreover, it was found that 50% of the apps are vulnerable to JavaScript injections via insecure UIWebView implementations. In some cases, the native iOS functionality was exposed, allowing actions such as sending SMS or emails from the victim’s device,” he continues.

Buggy HTML in banking app

This UIWebView implementation allows a false HTML form to be injected. Source: IO Active

The IO Active post also details a number of other information leaks, including unencrypted data stored in sqlite databases, and information like IP addresses and application paths that could let a determined and skilled attacker draw inferences about the server-side infrastructure the app is talking to.

The research only looked at the client side, Sanchez states, and where possible, IO Active notified banks of the vulnerabilities he identified. ®

SANS - Survey on application security programs

Whitepapers

Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.