Cyber Posture

CVE-2024-55215

CriticalPublic PoC

Published: 07 February 2025

Published
07 February 2025
Modified
03 July 2025
KEV Added
Patch
CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0487 89.6th percentile
Risk Priority 23 60% EPSS · 20% KEV · 20% CVSS

Description

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

Security Summary

CVE-2024-55215 is a privilege escalation vulnerability in trojan versions 2.0.0 through 2.15.3. The flaw resides in the initialization interface at /auth/register, where incorrect default permissions (CWE-276) enable unauthorized privilege elevation. Published on 2025-02-07, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), marking it as critical due to its network accessibility, low attack complexity, and lack of prerequisites.

A remote attacker requires no privileges, authentication, or user interaction to exploit the vulnerability over the network. Successful exploitation allows the attacker to achieve high impacts on confidentiality, integrity, and availability, potentially leading to full system compromise through escalated privileges.

A proof-of-concept for unauthorized exploitation in a Jrohy-trojan context is available at https://github.com/ainrm/Jrohy-trojan-unauth-poc/blob/main/README.en.md. No vendor advisories or specific patch details are referenced in the provided information.

Details

CWE(s)
CWE-276

Affected Products

jrohy
trojan
2.0.0 — 2.15.3

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Why these techniques?

The vulnerability enables remote unauthenticated privilege escalation via the /auth/register interface of the Jrohy-trojan proxy service, facilitating exploitation of a public-facing application for initial access (T1190) and exploitation for privilege escalation (T1068).

References