CVE-2022-24771: Improper Verification of Cryptographic Signature

March 18, 2022 (updated March 28, 2022)

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.3.0, RSA PKCS#1 v1.5 signature verification code is lenient in checking the digest algorithm structure. This can allow a crafted structure that steals padding bytes and uses unchecked portion of the PKCS#1 encoded message to forge a signature when a low public exponent is being used. The issue has been addressed in node-forge version 1.3.0. There are currently no known workarounds.

References

github.com/digitalbazaar/forge/commit/3f0b49a0573ef1bb7af7f5673c0cfebf00424df1
github.com/digitalbazaar/forge/security/advisories/GHSA-cfm4-qjh2-4765
nvd.nist.gov/vuln/detail/CVE-2022-24771

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