CVE-2024-23692KEV · OVERDUECWE-1336CWE-94code-injection

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

Critical · published May 31, 2024

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 99.9th percentile for exploit probability.

816
days past CISA
deadline
CVSS v3.1
9.8
EPSS
99%
Percentile
99.9
In the wild
Confirmed
What it is

🚨 A single crafted HTTP request can let an attacker execute arbitrary commands on your system! This critical template injection vulnerability in Rejetto HFS up to version 2.3m has no authentication barriers—meaning anyone can exploit it! 🔥 Think of it like a restaurant where the chef blindly trusts any order that comes through the kitchen without checking it—an unauthorized delivery of ‘chaos’ could lead to a culinary disaster! 📦🍽️ An attacker could seize complete control of your server, unleashing a wave of havoc that could lead to data theft, system manipulation, or even complete shutdown. This isn't just a minor inconvenience—it's a recipe for an absolute disaster!

Put simply

Think of it like a restaurant where the chef blindly trusts any order that comes through the kitchen without checking it—an unauthorized delivery of ‘chaos’ could lead to a culinary disaster! 📦🍽️ The vulnerability in Rejetto HTTP File Server allows remote, unauthenticated attackers to inject commands via specially crafted HTTP requests. This means they can run any command on the server, bypassing all security measures.

What to do

An attacker could seize complete control of your server, unleashing a wave of havoc that could lead to data theft, system manipulation, or even complete shutdown. This isn't just a minor inconvenience—it's a recipe for an absolute disaster! Patch immediately by upgrading to a supported version of Rejetto HFS, as version 2.3m is no longer maintained. If upgrading isn’t an option, consider disabling the service entirely until a secure solution can be implemented. 🛡️ This is fixable! Stay vigilant, take these steps, and you'll keep your server safe and sound. You've got this! 💪✨

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99485 · 99.9th percentile
Weaknesses
CWE-1336 · Improper Neutralization of Special Elements Used in a Template Engine; CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2024-05-31T14:15Z
KEV added
2024-07-09 · due 2024-07-30
Affected products (1)
ProductVersionsFixed in
rejetto/http_file_server≤ 2.4—
References (10)
EPSS history
Timeline
  • 09 JUL 00:00Z
    Added to CISA KEV — remediate by Jul 30
    kev
  • 31 MAY 09:36Z
    Rejetto HTTP File Server 2.3m Unauthenticated RCE
    cvelistv5