Patchfirst
CVE-2024-23692 KEVRansomwarePublic exploit Critical · 9.8 EPSS 99.5%

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

Rejetto · HTTP File Server

Summary

A template injection flaw in Rejetto HTTP File Server, affecting versions up to and including 2.3m, lets its template engine process attacker-supplied input as code. An remote, unauthenticated attacker needs only network access to the server and can send a specially crafted HTTP request, with no user interaction or special configuration required, to execute arbitrary commands on the affected system.

Official description · NVD

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.

Breakdown
79.8 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
4/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. What they do

  2. What can follow

First seen exploited 28 days after disclosure. Public exploit code (Metasploit) was available 6 days before disclosure.

  1. Public exploit codeMetasploit6 days before
  2. Disclosedday 0
  3. First seen exploitedVulnCheck KEV evidence+28 days
  4. Added to CISA KEVknown ransomware use; EU database agrees+39 days

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

4 , grouped by in kill-chain order 4

DiscoveryTA0007

System Information Discovery T1082 Medium
MITRE CTID mapping of the KEV entry · primary impact

CVE-2024-23692 is a OS command injection vulnerability within the HTTP File Server (HFS) process for Rejetto. It has been reported to be exploited by threat actors to deploy cryptomining malware, install backdoors, Remote Access Trojans (RATs), and other malware like “GoThief” to exfiltrate sensitive data.

CollectionTA0009

Data from Local System T1005 Medium
MITRE CTID mapping of the KEV entry · follow-on activity

Command and ControlTA0011

Ingress Tool Transfer T1105 Medium
MITRE CTID mapping of the KEV entry · follow-on activity

ImpactTA0040

Resource Hijacking T1496 Medium
MITRE CTID mapping of the KEV entry · follow-on activity
Lower-confidence links (1)

These come from early or generic mappings, text matching, or contradict this CVE’s details (for example a public-facing technique on a bug that needs a user to open a file). Shown for completeness.

  • Template InjectionT1221 server-side bug exploitable without user interaction; client-execution technique does not fit

Detection

0 rules for this CVE · 147 general rules for its techniques

Rules for this CVE

0 that reference CVE-2024-23692 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

General rules for this CVE’s techniques

These detect the technique in general, not this specific vulnerability.

System Information DiscoveryT108233 general rules
Data from Local SystemT100514 general rules
Ingress Tool TransferT110587 general rules
Resource HijackingT149613 general rules

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

7 links, grouped by NVD tag (3 duplicates merged)
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