CVE-2020-1361: Windows WalletService Information Disclosure Vulnerability

Overview

Severity
Medium (CVSS 5.5)
CVSS Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
Category
Information Disclosure
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2020-Jul
Released
2020-07-14
EPSS Score
0.97% (percentile: 76.6%)

Description

An information disclosure vulnerability exists in the way that the WalletService handles memory. To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application. The security update addresses the vulnerability by correcting how the WalletService handles memory.

FAQ

What type of information could be disclosed by this vulnerability? The type of information that could be disclosed if an attacker successfully exploited this vulnerability is memory layout - the vulnerability allows an attacker to collect information that facilitates predicting addressing of the memory.

Affected Products (29)

Windows

  • Windows 10 Version 2004 for 32-bit Systems
  • Windows 10 Version 2004 for x64-based Systems
  • Windows 10 Version 2004 for ARM64-based Systems
  • Windows Server, version 2004 (Server Core installation)
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows Server 2019
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows Server 2019 (Server Core installation)
  • Windows Server, version 1903 (Server Core installation)
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1909 for 32-bit Systems
  • Windows 10 Version 1909 for x64-based Systems
  • Windows Server, version 1909 (Server Core installation)
  • Windows 10 Version 1909 for ARM64-based Systems

Security Updates (7)

Acknowledgments

Jarvis_1oop of Pinduoduo Security Research Lab, Zhiniang Peng (@edwardzpeng) & Haoran Qin

Revision History

  • 2020-07-14: Information published.