What is CVE-2024-45394?

CVE-2024-45394 is a high-severity vulnerability in Authenticator, classified under Weak Encoding for Password. CVSS score: 8.8/10. Published 2024-09-03.

How severe is CVE-2024-45394?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Authenticator

CVE-2024-45394

Authenticator is a browser extension that generates two-step verification codes. In versions 7.0.0 and below, encryption keys for user data were stored encrypted at-rest using only AES-256 and the EVP_BytesToKey KDF. Therefore, attackers with a copy of a user's data are able to brute-force the user's encryption key. Users on version 8.0.0 and above are automatically migrated away from the weak encoding on first login. Users should destroy encrypted backups made with versions prior to 8.0.0.

EPSS: 0.001 (0.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Authenticator
Authenticator-extension Authenticator — versions < 8.0.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2024-45394?: CVE-2024-45394 is a high-severity vulnerability in Authenticator, classified under Weak Encoding for Password. CVSS score: 8.8/10. Published 2024-09-03.
How severe is CVE-2024-45394?: High severity. CVSS v3 base score is 8.8 out of 10.