CVE-2023-3804 Chengdu Flash Flood Disaster Monitoring and Warning System FileHandler.ashx unrestricted upload

Medium 5.5 Published 21 Jul 2023 Updated 2 Aug 2024

An attacker with permissions can upload arbitrary files via the FileHandler.ashx endpoint, potentially leading to code execution.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-3804?

CVE-2023-3804 is a medium-severity vulnerability in Chengdu Flash Flood Disaster Monitoring and Warning System, published on 21 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability classified as problematic was found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. This vulnerability affects unknown code of the file /Service/FileHandler.ashx. The manipulation of the argument userFile leads to unrestricted upload. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-235072. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-434

Which versions are affected by CVE-2023-3804?

It affects 1 product.

Products include Cdwanjiang Flash Flood Disaster Monitoring and Warning System.

How do I fix CVE-2023-3804?

No fix has been published for CVE-2023-3804 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-3804 being exploited?

There is no known exploitation of CVE-2023-3804 in the wild and no public exploit code.

Sources

Also known as GHSA-jfvq-34g4-7876.