Description
openssl_encrypt versions before 1.4.0 use an in-memory rate limiter for TOTP brute-force protection that is not shared across workers and is lost on server restart. Attackers can distribute authentication attempts across multiple server instances or retry immediately after a restart to bypass rate limiting protections.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jahlives | openssl_encrypt | < 1.4.0 | 1.4.0 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | openssl-encrypt | < 1.4.0 | 1.4.0 | GHSA-h45m-mgcp-q388 |
References
- GitHub Security Advisory (GHSA-h45m-mgcp-q388) vendor-advisory
- VulnCheck Advisory: openssl_encrypt before 1.4.0 TOTP Rate Limiter Bypass third-party-advisory