# CVE-2024-53704: SonicWall SonicOS SSLVPN Improper Authentication Vulnerability

- Exploited (CISA KEV): yes, added 2025-02-18, known ransomware use
- Published: 2025-01-09
- CVSS: 8.2 HIGH (v3.1)
- EPSS: 95.3% (100th percentile)
- CWE: CWE-287

An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-02-18 | 40 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-03-11 | 61 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-02-18 · new · rule 6e0d8afc36ba4ce9836f81e63b66df22 · default Block
  > SonicWall SSLVPN - Auth Bypass - CVE:CVE-2024-53704. Previous action: Log. New action: Block. This is a New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-02-18-waf-release/
- 2025-02-24 · new · rule f7b9d265b86f448989fb0f054916911e · default Block
  > SonicWall SSLVPN 2 - Auth Bypass - CVE:CVE-2024-53704. Previous action: Log. New action: Block. This is a New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-02-24-waf-release/

### F5

- 2025-03-11 · new · rule 200013109
  > Added: signature 200013109 "SonicWall SSLVPN Authentication Bypass" (Authentication/Authorization Attacks, risk High), systems: Other Web Server. References: CVE-2024-53704.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

## Our test (measured)

- OWASP Core Rule Set 4.25.0, paranoia level 1, anomaly threshold 5, default CRS settings: passed (0 of 1 requests blocked), template CVE-2024-53704, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: passed (0 of 1 requests blocked), template CVE-2024-53704, 2026-11-02

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2024-53704 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2024-53704