All the vulnerabilities related to the version 2.1.1 of the package
jsonwebtoken unrestricted key type could lead to legacy keys usage
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.
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 |
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.
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.
jsonwebtoken's insecure implementation of key retrieval function could lead to Forgeable Public/Private Tokens from RSA to HMAC
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.
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.
Update to version 9.0.0.
There is no impact for end users
jsonwebtoken vulnerable to signature validation bypass due to insecure default algorithm in jwt.verify()
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.
You will be affected if all the following are true in the jwt.verify()
function:
Update to version 9.0.0 which removes the default support for the none algorithm in the jwt.verify()
method.
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.
Vercel ms Inefficient Regular Expression Complexity vulnerability
A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.0.0 is able to address this issue. The name of the patch is caae2988ba2a37765d055c4eee63d383320ee662. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217451.