Vulnerabilities in Kaspersky for ATM software

A researcher found bugs in its security software Lab used in cash registers and other systems. Hackers can exploit bugs to bypass ATM system defenses.

Although Kaspersky immediately responded to the discovery, developed and released a patch, one wonders how long it will need to install updates on the equipment ATM which is located all over the world.Kaspersky

Georgy Zaytsev, her researcher Positive Technologies, revealed a vulnerability in the Kaspersky Embedded Systems Security 1.1 and 1.2 Boot Controls during a cashier security audit using the technology.

Exploiting the bug causes Kaspersky's software to be overloaded to the point where it cannot process verification requests . Αυτό σημαίνει ότι κάθε software could bypass the whitelist checks that are in place to prevent infections.

"Τα τρωτά σημεία που μας έχουν αναφερθεί δεν επιτρέπουν άμεσα την απόσυρση μετρητών από το ATM. Θα χρειαστούν να συμπέσουν αρκετές προϋποθέσεις για να λειτουργήσει μια τέτοια επίθεση: για παράδειγμα, πριν εκμεταλλευτεί αυτές τις ευπάθειες, ένας εισβολέας Θα πρέπει πρώτα να μολύνει το σύστημα με κακόβουλο λογισμικό (παρακάμπτοντας όλα τα στοιχεία προστασίας) και να το τρέξει μέσα στο σύστημα", δήλωσε ένας εκπρόσωπος της Kaspersky Lab.

To crash the antivirus, an attacker would have to add a large number of arbitrary με ένα εκτελέσιμο αρχείο. Όταν ξεκινήσει αυτό το πρόγραμμα, το σύστημα υπολογίζει το hash του και ελέγχει μια λίστα εγκεκριμένων ψηφιακών υπογραφών για να αποφασίσει αν θα επιτρέψει ή θα εμποδίσει την of the application. With such a large file, the process takes longer than the time set for normal file verification.

When this period expires, the program starts anyway. It is a one-off attack because the hash process does not stop and the system stores hidden signatures. Therefore, the next time the executable file starts, Kaspersky's software will be able to immediately see that the file is malicious and stop it.

If you use Kaspersky ATMs on your service, beware of the critical fix KB13520. The upgrade was released quietly at the end of June. So all ATM owners should immediately update their security software.

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Written by giorgos

George still wonders what he's doing here ...

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