exploiting-nopac-cve-2021-42278-42287

HIGH W007: Insecure credential handling detected in skill instructions.

• Insecure credential handling detected (high risk: 1.00). The skill contains multiple example commands that embed plaintext passwords and account credentials (e.g., domain.local/user:'Password123', 'AttackPass123') and instruct the agent to construct/run commands with those credentials, which requires the LLM to handle and output secret values verbatim.

CRITICAL E006: Malicious code pattern detected in skill scripts.

• Malicious code pattern detected (high risk: 1.00). This document is an explicit, actionable exploit guide for the noPac CVE-2021-42278/42287 chain that enables authenticated users to impersonate Domain Controllers, obtain TGTs, spawn remote shells on DCs, perform DCSync and dump domain credentials—i.e., deliberate instructions for credential theft, remote compromise and privilege escalation.

MEDIUM W013: Attempt to modify system services in skill instructions.

• Attempt to modify system services in skill instructions detected (high risk: 1.00). This skill explicitly instructs creating/renaming machine accounts, requesting forged Kerberos tickets, performing DCSync and obtaining a shell on the Domain Controller — all actions that modify domain/host state and create accounts/privileges, so it must be flagged.