Improper Verification of Cryptographic Signature in node-forge

高 7.5CVE-2022-24771 · GHSA-cfm4-qjh2-4765 · 18/03/2022 公開 · 17/06/2026 更新

要点

CVE-2022-24771 は forge (digitalbazaar), node-forge に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.78%（全脆弱性の 55.9% より高い）。
対処：1.3.0 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
forge digitalbazaar	`< 1.3.0`	`1.3.0`
node-forge npm	`< 1.3.0`	`1.3.0`

概要

Impact

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.

Patches

The issue has been addressed in node-forge 1.3.0.

References

For more information, please see "Bleichenbacher's RSA signature forgery based on implementation error" by Hal Finney.

For more information

If you have any questions or comments about this advisory:

Open an issue in forge
Email us at example email address

NVD の説明

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.