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CVE-2020-0665 is an elevation of privilege vulnerability in Active Directory forest trusts. The issue arises from a default trust configuration that allows an attacker located in the trusting forest to request delegation of a Kerberos Ticket Granting Ticket (TGT) for an identity from the trusted forest. In practice, this weakens the intended security boundary between forests and can allow abuse of inter-forest trust relationships to obtain delegated authentication material for identities in the trusted forest.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a proof-of-concept exploit for CVE-2020-0665, a vulnerability in Microsoft Active Directory that allows bypassing SID filtering across forest trusts. The main file, CVE-2020-0665.py, is a Python script that requires SYSTEM privileges and uses the frida library to inject a JavaScript payload into a running process (typically lsass.exe) on a Domain Controller. The payload hooks the RtlLengthSid function in ntdll.dll and replaces a specified SID in memory, enabling the attacker to impersonate accounts from a child domain in a foreign forest. The exploit is highly targeted, requiring specific domain trust relationships, SIDs, and a vulnerable (unpatched) environment. The repository consists of the exploit script and a README with detailed usage instructions and background on the attack. No network endpoints or external IPs/domains are hardcoded; the attack is performed locally on the compromised DC.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.