Node.js CVE-2024-49364
GHSA-7mc2-6phr-23xc
Lifecycle Timeline
3Blast Radius
ecosystem impact- 4,944 npm packages depend on tiny-secp256k1 (189 direct, 4,787 indirect)
Ecosystem-wide dependent count for version 1.1.7.
DescriptionCVE.org
tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a private key can be extracted on signing a malicious JSON-stringifiable object, when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. The Buffer.isBuffer check can be bypassed, resulting in k reuse for different messages, leading to private key extraction over a single invalid message (and a second one for which any message/signature could be taken, e.g. previously known valid one). This issue has been patched in version 1.1.7.
Analysis
tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a private key can be extracted on signing a malicious JSON-stringifiable object, when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. The Buffer.isBuffer check can be bypassed, resulting in k reuse for different messages, leading to private key extraction over a single invalid message (and a second one for which any message/signature could be taken, e.g. previously known valid one). This issue has been patched in version 1.1.7.
Technical ContextAI
This vulnerability is classified as Insufficiently Protected Credentials (CWE-522).
RemediationAI
Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.
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Same weakness CWE-522 – Insufficiently Protected Credentials
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today