CVE-2023-4172 Chengdu Flash Flood Disaster Monitoring and Warning System FileHandler.ashx absolute path traversal

Medium 4.3 Published 5 Aug 2023 Updated 2 Aug 2024

Remote attackers can exploit absolute path traversal in FileHandler.ashx to read arbitrary files from the server.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-4172?

CVE-2023-4172 is a medium-severity path traversal vulnerability in Chengdu Flash Flood Disaster Monitoring and Warning System, published on 5 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability, which was classified as problematic, has been found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. This issue affects some unknown processing of the file \Service\FileHandler.ashx. The manipulation of the argument FileDirectory leads to absolute path traversal. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-236207.

Weakness: CWE-22, CWE-36

Which versions are affected by CVE-2023-4172?

It affects 1 product.

Products include Cdwanjiang Flash Flood Disaster Monitoring and Warning System.

How do I fix CVE-2023-4172?

No fix has been published for CVE-2023-4172 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2023-4172 being exploited?

There is no known exploitation of CVE-2023-4172 in the wild and no public exploit code.

Sources

Also known as GHSA-23rg-jpw2-p6r8.