# CVE-2024-23692: Rejetto HTTP File Server Improper Neutralization of Special Elements Used in a Template Engine Vulnerability

- Exploited (CISA KEV): yes, added 2024-07-09, known ransomware use
- Published: 2024-05-31
- CVSS: 9.8 CRITICAL (v3.1)
- EPSS: 99.5% (100th percentile)
- CWE: CWE-1336

Rejetto HTTP File Server, up to and including version 2.3m, is vulnerable to a template injection vulnerability. This vulnerability allows a remote, unauthenticated attacker to execute arbitrary commands on the affected system by sending a specially crafted HTTP request. As of the CVE assignment date, Rejetto HFS 2.3m is no longer supported.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2024-08-13 | 74 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-08-13 · new · rule 200104972
  > Added: signature 200104972 "Rejetto HFS Remote Code Execution" (Server Side Code Injection, risk High), systems: Microsoft Windows, Other Web Server. References: CVE-2024-23692.
  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: blocked (1 of 1 requests blocked), template CVE-2024-23692, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: blocked (1 of 1 requests blocked), template CVE-2024-23692, 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-2024-23692 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2024-23692