CVE-2024-55956criticalunder attackransomwareCWE-77

CVE-2024-55956

Published · Updated

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

95Vexday Risk Score

Patch now. It under exploitation confirmed by CISA, has a working public exploit and 1 threat group(s) use it.

ssvc Actcvss 9.8epss 94%
from disclosure to weaponsame day
Published on NVDDec 13
metasploitDec 9
CISA KEV+4d
Who exploits it — 1

Groups known to exploit this vulnerability (MITRE ATT&CK attribution).

Action required by CISAfederal deadline: 2025-01-07

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

In short

An attacker can execute dangerous commands on the server without logging in by uploading files to a special folder that runs automatically. This is critical because it gives complete control of the system to anyone on the internet.

Technical detail

Unauthenticated remote code execution via the Autorun directory mechanism that automatically executes arbitrary Bash or PowerShell scripts without authentication. The vulnerability exploits default configurations allowing an attacker to import and run malicious commands with system-level privileges, resulting in complete system compromise.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before 5.8.0.24, an unauthenticated user can import and execute arbitrary Bash or PowerShell commands on the host system by leveraging the default settings of the Autorun directory.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · n/a