=====[ Tempest Security Intelligence - ADV-24/2018 ]=== eScan ISS for Business v14.0.1400.2029 - BSOD through of a IOCTL Author: Filipe Xavier Oliveira Tempest Security Intelligence - Recife, Pernambuco - Brazil =====[ Table of Contents ]===================================================== * Overview * Detailed description * Timeline of disclosure * Thanks & Acknowledgements * References =====[ Overview ]============================================================== * System affected : eScan ISS for Business[1]. * Software Version : 14.0.1400.2029 (other versions may also be affected). * Impact : A user may be affected by opening a malicious executable, =====[ Detailed description ]================================================== In MicroWorld eScan Internet Security Suite (ISS) for Business 14.0.1400.2029, the driver econceal.sys allows a non-privileged user to send a 0x830020E0 IOCTL request to \\.\econceal to cause a denial of service (BSOD). =====[ Aggravating factors ]=================================================== A malicious executable can cause a bsod on the system through the driver from antivirus. =====[ Timeline of disclosure ]=============================================== 04/17/2018 - Vulnerability reported. 04/21/2018 - The vendor receive and will check the vulnerability. 07/12/2018 - The vendor did not respond. 07/12/2018 - CVE assigned [2] =====[ Thanks & Acknowledgements ]============================================ - Tempest Security Intelligence / Tempest's Pentest Team [3] =====[ References ]=========================================================== [1] https://www.escanav.com/en/windows-antivirus/corporate-edition-with-hybrid.asp [2] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10098 [3] http://www.tempest.com.br =====[ EOF ]==================================================================== -- Filipe Oliveira Tempest Security Intelligence