CVE-2022-35255

moderate-risk
Published 2022-12-05

A weak randomness in WebCrypto keygen vulnerability exists in Node.js 18 due to a change with EntropySource() in SecretKeyGenTraits::DoKeyGen() in src/crypto/crypto_keygen.cc. There are two problems with this: 1) It does not check the return value, it assumes EntropySource() always succeeds, but it can (and sometimes will) fail. 2) The random data returned byEntropySource() may not be cryptographically strong and therefore not suitable as keying material.

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Products (7)

Affected Vendors

Debian Siemens Nodejs

References (8)

Third Party Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
Exploit https://hackerone.com/reports/1690000
Third Party Advisory https://security.netapp.com/advisory/ntap-20230113-0002/
Third Party Advisory https://www.debian.org/security/2023/dsa-5326
Third Party Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
Exploit https://hackerone.com/reports/1690000
Third Party Advisory https://security.netapp.com/advisory/ntap-20230113-0002/
Third Party Advisory https://www.debian.org/security/2023/dsa-5326
49
/ 100
moderate-risk
Severity 31/34 · Critical
Exploitability 4/34 · Minimal
Exposure 14/34 · Moderate