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
1.3.0
.
For more information, please see "Bleichenbacher's RSA signature forgery based on implementation error" by Hal Finney.
If you have any questions or comments about this advisory: * Open an issue in forge * Email us at example email address
{ "github_reviewed": true, "severity": "HIGH", "github_reviewed_at": "2022-03-18T23:09:54Z", "cwe_ids": [ "CWE-347" ], "nvd_published_at": "2022-03-18T14:15:00Z" }