Emergency Directive 21-01: Mitigate SolarWinds Orion Code Compromise¶
Cybersecurity and Infrastructure Security Agency. (2020). Emergency Directive 21-01: Mitigate SolarWinds Orion Code Compromise: Mitigate SolarWinds Orion Code Compromise.
Cited by¶
1 citation across 1 artifact.
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Primes¶
- Trusted Intermediary Compromise
- The attacker write access is gained at the build server: the adversary inserts a backdoor into the source before it is compiled and signed, so the malicious build is signed by the legitimate key and is indistinguishable, to every downstream check, from a clean release.
This sourceDocuments the SolarWinds build-server compromise that shipped a signed trojan to thousands of customers.
Supported in partVerified against the work's full text
CISA states the adversary had covert access to the Orion build process and inserted malicious code into released versions; it does not mention signing with the legitimate key or indistinguishability.
“The adversary enjoyed longstanding, covert access to the build process that SolarWinds uses for Orion, including to the code underlying the Orion platform.”
- The attacker write access is gained at the build server: the adversary inserts a backdoor into the source before it is compiled and signed, so the malicious build is signed by the legitimate key and is indistinguishable, to every downstream check, from a clean release.
Verification¶
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Registry ID ref:dca1fb6f9c76 · see in the full table