Cyber Posture

CVE-2025-1834

MediumPublic PoC

Published: 02 March 2025

Published
02 March 2025
Modified
26 May 2025
KEV Added
Patch
CVSS Score 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0008 22.8th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Description

Adversaries may transfer tools or other files from an external system into a compromised environment.

Security Summary

CVE-2025-1834 is a critical vulnerability discovered in zj1983 zz up to version 2024-8, affecting an unknown part of the /resolve file or endpoint. The issue stems from manipulation of the "file" argument, enabling unrestricted file upload. Published on 2025-03-02, it is associated with CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type), with a CVSS 3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

A remote attacker with low privileges can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, potentially enabling attackers to upload malicious files that could facilitate further compromise depending on the application's context.

Advisories from VulDB and related GitHub repositories indicate that the exploit has been publicly disclosed and is available for use. The vendor was contacted early regarding the disclosure but provided no response, and no patches or specific mitigations are detailed in the references. Security practitioners should restrict access to the /resolve endpoint and monitor for anomalous file uploads.

Details

CWE(s)
CWE-284CWE-434

Affected Products

zframeworks
zz
≤ 2024-8

MITRE ATT&CK Enterprise Techniques

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.
T1105 Ingress Tool Transfer Command And Control
Adversaries may transfer tools or other files from an external system into a compromised environment.
Why these techniques?

Unrestricted arbitrary file upload vulnerability in the public-facing /resolve endpoint enables remote exploitation of a public-facing application (T1190) and facilitates ingress tool transfer (T1105) by allowing attackers to upload any files, including malicious tools or payloads.

References