PrintNightmare (CVE-2021-34527) allows remote code execution and local privilege escalation via the Print Spooler service. 2.5 Cloud Metadata Credential Theft From a low-privileged shell on a TCM Windows instance, an attacker can query the instance metadata service:
accesschk.exe -uwcqv "Authenticated Users" * Cloud Risk: Often found in third-party monitoring agents installed by cloud marketplace images. 2.3 AlwaysInstallElevated If two registry keys are set, any MSI package installs with SYSTEM privileges. tcm security windows privilege escalation
Invoke-RestMethod -Uri "http://metadata.tencentyun.com/latest/meta-data/cam/security-credentials/" If the instance is assigned a , the returned temporary credentials (SecretId, SecretKey, Token) allow privilege escalation outside the instance to other Tencent Cloud resources (COS, CVM, VPC). 3. Enumeration Methodology (TCM Recommended) A structured approach for Windows privilege escalation assessment: the returned temporary credentials (SecretId