Advisory Details

May 12th, 2020

Microsoft Internet Explorer CWMPErrorDlg Use-After-Free Remote Code Execution Vulnerability

ZDI-20-639
ZDI-CAN-10103

CVE ID CVE-2020-1150
CVSS SCORE 7.5, AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Internet Explorer. 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 handling of the CWMPErrorDlg object. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1150
DISCLOSURE TIMELINE
  • 2020-01-10 - Vulnerability reported to vendor
  • 2020-05-12 - Coordinated public release of advisory
CREDIT Hossein Lotfi of Trend Micro Zero Day Initiative
BACK TO ADVISORIES