SRC-2018-0029 : Microsoft Windows Jet Database Engine Out-Of-Bounds Write Remote Code Execution Vulnerability

CVE ID:

CVE-2018-8423

CVSS Score:

6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)

Affected Vendors:

Microsoft

Affected Products:

Microsoft Windows

Vulnerability Details:

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 management of indexes in the Jet database engine. Crafted data in a database file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code under the context of the current process.

Vendor Response:

Microsoft has issued an update to correct these vulnerabilities. More details can be found at:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8423

Disclosure Timeline:

  • 2018-09-02 - Vulnerability reported to Microsoft
  • 2018-10-09 - Coordinated public release of advisory

Credit:

This vulnerability was discovered by Steven Seeley (mr_me) of Source Incite