# CVE-2024-37393: CVE-2024-37393

- Exploited (CISA KEV): no
- Published: 2024-06-10
- CVSS: 9.8 CRITICAL (v3.1)
- EPSS: 3.3% (89th percentile)

Multiple LDAP injections vulnerabilities exist in SecurEnvoy MFA before 9.4.514 due to improper validation of user-supplied input. An unauthenticated remote attacker could exfiltrate data from Active Directory through blind LDAP injection attacks against the DESKTOP service exposed on the /secserver HTTP endpoint. This may include ms-Mcs-AdmPwd, which has a cleartext password for the Local Administrator Password Solution (LAPS) feature.

## 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 | 2024-09-17 | 99 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-09-17 · new · rule 200005015
  > Added: signature 200005015 "SecurEnvoy LDAP injection" (LDAP Injection, risk High), systems: Microsoft Windows, IIS. References: CVE-2024-37393.
  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 (2 of 2 requests blocked), template CVE-2024-37393, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: blocked (2 of 2 requests blocked), template CVE-2024-37393, 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.

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