The CVE-2025-XXXX vulnerability in OpenDaylight SFC (Service Function Chaining) arises due to improper access control in the Shiro-based RBAC mechanism. Attackers can craft malicious HTTP requests that bypass authentication checks, allowing unauthorized execution of privileged operations. The flaw exists because the application fails to properly validate session tokens and role permissions, enabling attackers to escalate privileges by manipulating request headers or cookies.
When a crafted request is sent to the OpenDaylight REST API, the system incorrectly assigns elevated permissions due to insufficient validation. This allows attackers to perform administrative actions such as modifying network policies, intercepting traffic, or deploying malicious service functions. The vulnerability is particularly dangerous in SDN (Software-Defined Networking) environments where OpenDaylight acts as a controller.
DailyCVE Form:
Platform: OpenDaylight SFC
Version: Sodium-SR4 and below
Vulnerability: Privilege Escalation
Severity: Critical
Date: Mar 24, 2025
What Undercode Say:
Exploitation:
- Craft a malicious HTTP request with manipulated `Authorization` headers.
- Use session fixation or cookie tampering to bypass Shiro’s RBAC checks.
- Send the request to `/restconf/operations/sfc-service-function` or other privileged endpoints.
Detection Commands:
curl -v -H "Cookie: JSESSIONID=malicious_value" http://odl-controller:8181/restconf/config/sfc
import requests
response = requests.get("http://odl-controller:8181/restconf/operational", headers={"X-Auth-Token": "invalid_token"})
print(response.status_code) 200 indicates possible exploitation
Mitigation:
1. Upgrade to OpenDaylight Magnesium or later.
2. Apply strict RBAC rules via `etc/shiro.ini`:
[bash] admin = user = read_only:
3. Enable audit logging in `logback.xml`:
<logger name="org.opendaylight.sfc" level="DEBUG" additivity="false"> <appender-ref ref="SECURITY_AUDIT"/> </logger>
Network Protection:
iptables -A INPUT -p tcp --dport 8181 -m string --string "POST /restconf" --algo bm -j DROP
Forensics:
grep "Unauthorized access attempt" /var/log/opendaylight/security.log
Patch Verification:
openssl s_client -connect odl-controller:8181 -servername odl-controller | grep "Server: OpenDaylight Magnesium"
References:
Reported By: https://github.com/advisories/GHSA-x65v-g96x-c6gw
Extra Source Hub:
Undercode
