CVE-2024-55956

Dec. 20, 2024, 3:21 p.m.

9.8
Critical

Description

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.

Product(s) Impacted

Vendor Product Versions
Cleo
  • Harmony
  • Lexicom
  • Vltrader
  • *
  • *
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-276
Incorrect Default Permissions
During installation, installed file permissions are set to allow anyone to modify those files.
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a cleo harmony / / / / / / / /
a cleo lexicom / / / / / / / /
a cleo vltrader / / / / / / / /

References

https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending
https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update
https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wild

Tags

cve@mitre.org
CWE-276
CWE-77
2024-12-13
CVE-2024-55956

CVSS Score

9.8 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH

    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

    View Vector String

Timeline

Published: Dec. 13, 2024, 9:15 p.m.
Last Modified: Dec. 20, 2024, 3:21 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cve@mitre.org

Relations

Here is the list of observables linked to the vulnerability CVE-2024-55956 using threat intelligence.

  • Cobalt Strike

Linked Attack Reports

Widespread Exploitation of Cleo File Transfer Software

Critical vulnerabilities in Cleo file transfer products, including VLTrader, Harmony, and LexiCom, are being actively exploited. Initially stemming from an insufficient patch for CVE-2024-50623, a new critical vulnerability (CVE-2024-55956) allows unauthenticated users to execute arbitrary commands…
cleo
CVE-2024-55956
2024-12-16
Published: December 16, 2024
Linked vulnerabilities : CVE-2024-50623 (CVSS 8.8), CVE-2024-55956 (CVSS 9.8)
Downloadable IOCs: 6

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.