The complete source code for the Android remote access Trojan (RAT) called Dendroid has been leaked online, which researchers from PhishLabs have found contains several vulnerabilities.
“The lack of user input validation in Dendroid’s control panel is severe, especially when you consider the level of operational security needed in even smaller crimeware campaigns,” PhishLabs Threat Analyst Paul Burbage explained in a blog post.
One of the vulnerabilities, for which PhishLabs has published a proof-of-concept, is an unsanitized user input written to a file called Panel/config.php via a POST request to Panel/applysettings.php. By rewriting the configuration file, an attacker can inject and execute arbitrary PHP code, and even make the control panel inoperable.
“In the past, malware source code leaks have spawned several variants and led to more widespread use of the crimeware features that made the original malware desirable,” Burbage explained. “When the source code for Zeus Trojan was leaked in 2011, for example, it accelerated the proliferation of features designed to bypass online banking security measures.”