CVE-2024-23692

Rejetto HTTP File Server: Improper Neutralization of Special Elements Used in a Template Engine

As of , CVE-2024-23692 in Rejetto HTTP File Server is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 9 July 2024
US federal deadline
30 July 202421 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
KnownCISA changed it from Unknown to Known on 6 August 2026.
EPSS score
0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.00 on 9 July 2024EPSS on the day CISA listed it.
Public exploit
1 Metasploit module and 1 Exploit-DB entry
Fix
Vendor advice: github.comLinks below, from CISA's entry.

What CISA says to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA's required action

  • github.comThe patched Rejetto HTTP File Server (HFS) is version 3

What the flaw is

Rejetto HTTP File Server contains an improper neutralization of special elements used in a template engine vulnerability. This allows a remote, unauthenticated attacker to execute commands on the affected system by sending a specially crafted HTTP request.

CISA's description

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.

The CVE record's description, from VulnCheck

CVE published
31 May 2024
Assigned by
VulnCheck
CVSS
9.8 Critical (CVSS 3.1, from the CNA)
CWE-1336
Improper Neutralization of Special Elements Used in a Template Engine
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.
  4. Exploit-DB published an exploit (EDB-ID 52102).
  5. CISA changed its entry. Ransomware use: Unknown to Known.

Public exploits

Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.

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