CVE-2024-23692
Rejetto — Rejetto HTTP File Server Improper Neutralization of Special Elements Used in a Template Engine Vulnerability
Rejetto · CWE-1336 | CWE-94 — Code injection · in CISA KEV since 2024-07-09
EVRS 94 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 64 of 2,962 tracked
Why it scores 94
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and associated with known ransomware campaigns.
- CISA KEVApplied
- RansomwareApplied
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
http file server: update to a version newer than 2.4
Affected versions
- http file server
<= 2.4
Remediation
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.995 (99.94th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Known | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2024-07-30 · KEV since 2024 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | Public module exists | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by VulnCheck. | Listed | ENISA EUVD |
Description
NVDRejetto 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.
What CISA says to do
Public module
Metasploit lists a public excellent-rank module for this CVE: Rejetto HTTP File Server (HFS) Unauthenticated Remote Code Execution (windows/http/rejetto_hfs_rce_cve_2024_23692). A module existing is not the same as active exploitation; see metasploit.com.