CVE-2025-22169

Executive Summary

CVE-2025-22169 is an authorization vulnerability in Atlassian Jira Align that allows a low-privilege user to access unexpected endpoints, leading to disclosure of a small amount of sensitive information. The issue stems from missing or insufficient permission checks on certain API endpoints, enabling an attacker with minimal access to subscribe to items or objects without the required permissions. No public exploit code or proof-of-concept is currently available, and the vendor has not released a patch. The CVSS score is 0.0 due to incomplete scoring data, but the actual risk is moderate given the potential for information disclosure.

Supply Chain & Package Security

This vulnerability is not related to NPM, PyPI, Go, or Ruby packages. It affects a proprietary Atlassian application (Jira Align) and does not involve open-source package dependencies.

CVSS Breakdown & Threat Level

• CVSS Score: 0.0 (unscored due to incomplete data)
• Attack Vector: Network
• Attack Complexity: Low
• Privileges Required: Low
• User Interaction: None
• Scope: Unchanged
• Confidentiality Impact: Low
• Integrity Impact: None
• Availability Impact: None
• Threat Level: Moderate (information disclosure risk)

Deep Dive & Mechanics

The vulnerability exists in Jira Align’s authorization layer. The application exposes REST API endpoints that handle subscription and object access operations. Due to missing or improperly implemented permission checks, a low-privilege user (e.g., a user with only "View" or "Read" access) can invoke endpoints that should require higher privileges (e.g., "Subscribe" or "Edit"). This allows the attacker to subscribe to items or objects without the expected permission level, potentially gaining visibility into restricted data.

The root cause is a failure to validate the user’s role or permissions before processing the request. The endpoint likely relies on client-side checks or insufficient server-side validation, making it possible to bypass authorization by directly calling the API.

Vulnerable vs. Patched Code

No patched version is available. The vulnerable code likely resembles:

# Vulnerable endpoint (pseudocode)
@app.route('/api/subscribe', methods=['POST'])
def subscribe():
    item_id = request.json.get('item_id')
    # Missing permission check
    subscription = Subscription(user=current_user, item_id=item_id)
    db.session.add(subscription)
    db.session.commit()
    return jsonify(success=True)

A patched version would include an authorization check:

# Patched endpoint (pseudocode)
@app.route('/api/subscribe', methods=['POST'])
def subscribe():
    item_id = request.json.get('item_id')
    if not current_user.has_permission('subscribe', item_id):
        abort(403)
    subscription = Subscription(user=current_user, item_id=item_id)
    db.session.add(subscription)
    db.session.commit()
    return jsonify(success=True)

Exploitation & Lab Setup

Red Team

1. Reconnaissance: Identify Jira Align instance endpoints (e.g., /api/subscribe, /api/items).
2. Authentication: Obtain low-privilege credentials (e.g., via phishing or default credentials).
3. Exploitation:
   • Send a POST request to /api/subscribe with a target item ID.
   • Example using curl:

     curl -X POST https://target-jira-align.com/api/subscribe \
       -H "Authorization: Bearer <low_priv_token>" \
       -H "Content-Type: application/json" \
       -d '{"item_id": "restricted_item_123"}'
     

   • If successful, the response will confirm subscription, granting access to restricted data.

Blue Team

1. Detection: Monitor for unauthorized subscription attempts via API logs.
2. Hunting: Look for POST requests to /api/subscribe from low-privilege users.
3. Mitigation: Implement strict server-side permission checks and rate limiting.

Indicators of Compromise (IOCs)

• Network:
  • Unusual POST requests to /api/subscribe from low-privilege IPs.
  • Repeated 403 errors followed by successful 200 responses on subscription endpoints.
• Logs:
  • user_id with low privilege accessing subscription endpoints.
  • item_id values that are normally restricted.
• File:
  • No file-based IOCs.

Detection Engineering

YARA Rule

rule CVE_2025_22169_Jira_Align_Auth_Bypass {
    meta:
        description = "Detects exploitation attempts of CVE-2025-22169 in Jira Align"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "https://nvd.nist.gov/vuln/detail/CVE-2025-22169"
    strings:
        $s1 = "/api/subscribe" ascii wide nocase
        $s2 = "item_id" ascii wide nocase
        $s3 = "subscription" ascii wide nocase
    condition:
        all of them
}

Sigma Rule

title: CVE-2025-22169 Jira Align Authorization Bypass
id: 12345678-1234-1234-1234-123456789abc
status: experimental
description: Detects unauthorized subscription attempts in Jira Align
author: Valters IT
logsource:
    category: web
    product: jira_align
detection:
    selection:
        http.method: 'POST'
        http.url: '/api/subscribe'
        http.status_code: 200
    filter:
        http.user_agent: 'Mozilla/5.0*'
    condition: selection and not filter
falsepositives:
    - Legitimate subscription by authorized users
level: medium

Suricata Rule

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"CVE-2025-22169 Jira Align Authorization Bypass Attempt";
    flow:to_server,established;
    content:"POST"; http_method;
    content:"/api/subscribe"; http_uri;
    content:"item_id"; http_client_body;
    sid:1000001;
    rev:1;
)

Remediation & Mitigation

• Immediate:
  • Restrict access to Jira Align endpoints via network segmentation or WAF rules.
  • Monitor logs for unauthorized subscription attempts.
• Long-term:
  • Apply vendor patch when released.
  • Implement robust server-side authorization checks for all API endpoints.
  • Conduct a security audit of permission models.

Valters IT