Fortinet Discovers Malwarebytes Self-Protection Bypass Vulnerability
Fortinet's FortiGuard Labs has discovered a security bypass issue in Malwarebytes.
Malwarebytes is an anti-malware software for Microsoft Windows, macOS and Android that is developed by Malwarebytes Corporation. It is available in a free version, which scans for and removes malware when started manually, and a paid version, which additionally provides scheduled scans, real-time protection and a flash-memory scanner.
It has been discovered that Malwarebyte's self-defense driver can be manipulated by unprivileged users in order to disable product's critical functionalities. The vulnerability resides in MBAMChameleon which, upon successful exploitation, can be leveraged by adversary to tamper with the files, services and registries protected by the product.
Users should apply the solution provided by Malwarebytes.
Fortinet reported the vulnerability to Malwarebytes on January 12, 2017.
Malwarebytes patched the vulnerability on May 10, 2017.