Microsoft Windows Jet Database Engine Sign Extension Remote Code Execution Vulnerability

2019-05-15T00:00:00
ID ZDI-19-467
Type zdi
Reporter rgod of 9sg Security Team - rgod@9sgsec.com
Modified 2019-06-22T00:00:00

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the JET database engine. Crafted data in an MDB file can trigger a sign extension before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process.