Versions <=8.5.1 of jsonwebtoken library could be misconfigured so that legacy, insecure key types are used for signature verification. For example, DSA keys could be used with the RS256 algorithm.
Am I affected?
You are affected if you are using an algorithm and a key type other than the combinations mentioned below
Key type
algorithm
ec
ES256, ES384, ES512
rsa
RS256, RS384, RS512, PS256, PS384, PS512
rsa-pss
PS256, PS384, PS512
And for Elliptic Curve algorithms:
alg
Curve
ES256
prime256v1
ES384
secp384r1
ES512
secp521r1
How do I fix it?
Update to version 9.0.0. This version validates for asymmetric key type and algorithm combinations. Please refer to the above mentioned algorithm / key type combinations for the valid secure configuration. After updating to version 9.0.0, If you still intend to continue with signing or verifying tokens using invalid key type/algorithm value combinations, you’ll need to set the allowInvalidAsymmetricKeyTypes option to true in the sign() and/or verify() functions.
Will the fix impact my users?
There will be no impact, if you update to version 9.0.0 and you already use a valid secure combination of key type and algorithm. Otherwise, use the allowInvalidAsymmetricKeyTypes option to true in the sign() and verify() functions to continue usage of invalid key type/algorithm combination in 9.0.0 for legacy compatibility.
Versions <=8.5.1 of jsonwebtoken library can be misconfigured so that passing a poorly implemented key retrieval function (referring to the secretOrPublicKey argument from the readme link) will result in incorrect verification of tokens. There is a possibility of using a different algorithm and key combination in verification than the one that was used to sign the tokens. Specifically, tokens signed with an asymmetric public key could be verified with a symmetric HS256 algorithm. This can lead to successful validation of forged tokens.
Am I affected?
You will be affected if your application is supporting usage of both symmetric key and asymmetric key in jwt.verify() implementation with the same key retrieval function.
In versions <=8.5.1 of jsonwebtoken library, lack of algorithm definition and a falsy secret or key in the jwt.verify() function can lead to signature validation bypass due to defaulting to the none algorithm for signature verification.
Am I affected?
You will be affected if all the following are true in the jwt.verify() function:
a token with no signature is received
no algorithms are specified
a falsy (e.g. null, false, undefined) secret or key is passed
How do I fix it?
Update to version 9.0.0 which removes the default support for the none algorithm in the jwt.verify() method.
Will the fix impact my users?
There will be no impact, if you update to version 9.0.0 and you don’t need to allow for the none algorithm. If you need 'none' algorithm, you have to explicitly specify that in jwt.verify() options.
Release Notes
auth0/node-jsonwebtoken (jsonwebtoken)
### [`v9.0.0`](https://redirect.github.com/auth0/node-jsonwebtoken/blob/HEAD/CHANGELOG.md#900---2022-12-21)
[Compare Source](https://redirect.github.com/auth0/node-jsonwebtoken/compare/v8.5.1...v9.0.0)
**Breaking changes: See [Migration from v8 to v9](https://redirect.github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v8-to-v9)**
##### Breaking changes
- Removed support for Node versions 11 and below.
- The verify() function no longer accepts unsigned tokens by default. (\[[`8345030`](https://redirect.github.com/auth0/node-jsonwebtoken/commit/834503079514b72264fd13023a3b8d648afd6a16)]https://github.com/auth0/node-jsonwebtoken/commit/834503079514b72264fd13023a3b8d648afd6a16)
- RSA key size must be 2048 bits or greater. (\[[`ecdf6cc`](https://redirect.github.com/auth0/node-jsonwebtoken/commit/ecdf6cc6073ea13a7e71df5fad043550f08d0fa6)]https://github.com/auth0/node-jsonwebtoken/commit/ecdf6cc6073ea13a7e71df5fad043550f08d0fa6)
- Key types must be valid for the signing / verification algorithm
##### Security fixes
- security: fixes `Arbitrary File Write via verify function` - CVE-2022-23529
- security: fixes `Insecure default algorithm in jwt.verify() could lead to signature validation bypass` - CVE-2022-23540
- security: fixes `Insecure implementation of key retrieval function could lead to Forgeable Public/Private Tokens from RSA to HMAC` - CVE-2022-23541
- security: fixes `Unrestricted key type could lead to legacy keys usage` - CVE-2022-23539
Configuration
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This PR contains the following updates:
8.5.1->9.0.0GitHub Vulnerability Alerts
CVE-2022-23539
Overview
Versions
<=8.5.1ofjsonwebtokenlibrary could be misconfigured so that legacy, insecure key types are used for signature verification. For example, DSA keys could be used with the RS256 algorithm.Am I affected?
You are affected if you are using an algorithm and a key type other than the combinations mentioned below
And for Elliptic Curve algorithms:
algHow do I fix it?
Update to version 9.0.0. This version validates for asymmetric key type and algorithm combinations. Please refer to the above mentioned algorithm / key type combinations for the valid secure configuration. After updating to version 9.0.0, If you still intend to continue with signing or verifying tokens using invalid key type/algorithm value combinations, you’ll need to set the
allowInvalidAsymmetricKeyTypesoption totruein thesign()and/orverify()functions.Will the fix impact my users?
There will be no impact, if you update to version 9.0.0 and you already use a valid secure combination of key type and algorithm. Otherwise, use the
allowInvalidAsymmetricKeyTypesoption totruein thesign()andverify()functions to continue usage of invalid key type/algorithm combination in 9.0.0 for legacy compatibility.CVE-2022-23541
Overview
Versions
<=8.5.1ofjsonwebtokenlibrary can be misconfigured so that passing a poorly implemented key retrieval function (referring to thesecretOrPublicKeyargument from the readme link) will result in incorrect verification of tokens. There is a possibility of using a different algorithm and key combination in verification than the one that was used to sign the tokens. Specifically, tokens signed with an asymmetric public key could be verified with a symmetric HS256 algorithm. This can lead to successful validation of forged tokens.Am I affected?
You will be affected if your application is supporting usage of both symmetric key and asymmetric key in jwt.verify() implementation with the same key retrieval function.
How do I fix it?
Update to version 9.0.0.
Will the fix impact my users?
There is no impact for end users
CVE-2022-23540
Overview
In versions <=8.5.1 of jsonwebtoken library, lack of algorithm definition and a falsy secret or key in the
jwt.verify()function can lead to signature validation bypass due to defaulting to thenonealgorithm for signature verification.Am I affected?
You will be affected if all the following are true in the
jwt.verify()function:How do I fix it?
Update to version 9.0.0 which removes the default support for the none algorithm in the
jwt.verify()method.Will the fix impact my users?
There will be no impact, if you update to version 9.0.0 and you don’t need to allow for the
nonealgorithm. If you need 'none' algorithm, you have to explicitly specify that injwt.verify()options.Release Notes
auth0/node-jsonwebtoken (jsonwebtoken)
### [`v9.0.0`](https://redirect.github.com/auth0/node-jsonwebtoken/blob/HEAD/CHANGELOG.md#900---2022-12-21) [Compare Source](https://redirect.github.com/auth0/node-jsonwebtoken/compare/v8.5.1...v9.0.0) **Breaking changes: See [Migration from v8 to v9](https://redirect.github.com/auth0/node-jsonwebtoken/wiki/Migration-Notes:-v8-to-v9)** ##### Breaking changes - Removed support for Node versions 11 and below. - The verify() function no longer accepts unsigned tokens by default. (\[[`8345030`](https://redirect.github.com/auth0/node-jsonwebtoken/commit/834503079514b72264fd13023a3b8d648afd6a16)]https://github.com/auth0/node-jsonwebtoken/commit/834503079514b72264fd13023a3b8d648afd6a16) - RSA key size must be 2048 bits or greater. (\[[`ecdf6cc`](https://redirect.github.com/auth0/node-jsonwebtoken/commit/ecdf6cc6073ea13a7e71df5fad043550f08d0fa6)]https://github.com/auth0/node-jsonwebtoken/commit/ecdf6cc6073ea13a7e71df5fad043550f08d0fa6) - Key types must be valid for the signing / verification algorithm ##### Security fixes - security: fixes `Arbitrary File Write via verify function` - CVE-2022-23529 - security: fixes `Insecure default algorithm in jwt.verify() could lead to signature validation bypass` - CVE-2022-23540 - security: fixes `Insecure implementation of key retrieval function could lead to Forgeable Public/Private Tokens from RSA to HMAC` - CVE-2022-23541 - security: fixes `Unrestricted key type could lead to legacy keys usage` - CVE-2022-23539Configuration
📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
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