VDB
KO
HIGH 7.4

GHSA-wvqx-v3f6-w8rh

jsrsasign: DSA signatures or X.509 certificates can be forged via DSA domain-parameter validation in KJUR.crypto.DSA.setPublic

Quick fix

GHSA-wvqx-v3f6-w8rh — jsrsasign: upgrade to the fixed version with the command below. 

npm install jsrsasign@11.1.1

Details

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker can forge DSA signatures or X.509 certificates that X509.verifySignature() accepts by supplying malicious domain parameters such as g=1, y=1, and a fixed r=1, which make the verification equation true for any hash.

Are you affected?

Enter the version of the package you're using.

Affected packages

npm / jsrsasign
Introduced in: 0 Fixed in: 11.1.1
Fix npm install jsrsasign@11.1.1

References