Main Vulnerability Database Vulnerabilities #VU51311

Permissions, Privileges, and Access Controls in Microsoft Windows - CVE-2021-26885

Published: March 9, 2021 / Updated: March 18, 2021

Vulnerability identifier: #VU51311

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-26885

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the Windows WalletService, which leads to security restrictions bypass and privilege escalation.

Affected software

Microsoft Windows

How to mitigate CVE-2021-26885

Install updates from vendor's website.

Links to Public Exploits and PoC-codes

Exploit #5226 - PocList (Alibaba-Nacos-Unauthorized/ApacheDruid-RCE_CVE-2021-25646/MS-Exchange-SSRF-CVE-2021-26885/Oracle-WebLogic-CVE-2021-2109_RCE/RG-CNVD-2021-14536/RJ-SSL-VPN-UltraVires/Redis-Unauthorized-RCE/TDOA-V11.7-GetOnlineCookie/VMware-vCenter-GetAnyFile/yongy (March 18, 2021)

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26885

Related Security Bulletins

Multiple vulnerabilities in Microsoft Windows WalletService