Implementation Guide

Atlassian Critical Vulnerability – Detection & Mitigation Guide

ICARAX Tech Blog

TL;DR – This guide shows how to programmatically check whether your Atlassian stack (Jira, Confluence, Bitbucket, Bamboo, Fisheye, Crucible, Statuspage, and Opsgenie) is running a version prior to the patched release for the recently disclosed critical file‑access flaw (CVE‑2024‑XXXXX). The snippets are ready‑to‑copy, include proper error handling, and follow modern best‑practices for both Python and JavaScript/TypeScript.

Step 1: Prerequisites

Item	Why you need it	Recommended version
Atlassian product admin access (or a token with `read` scope)	To call the REST `/rest/api/2/serverInfo` (Jira) or equivalent endpoints.	Any recent version; token must be generated from Account Settings → Security → API token (or personal access token for Bitbucket).
Python 3.9+	For the Python example.	`python --version`
Node.js 18+ (or LTS)	For the JS/TS example.	`node --version`
Git (optional)	To clone a sample repo or manage your own code.	`git --version`
dotenv (or similar)	To keep secrets out of source control.	Built‑in for Node (`dotenv` package) or use `python-dotenv`.

Note – The code only reads server information; it does not modify any data, so it is safe to run in staging or production environments.

Step 2: Installation & Setup

2.1 Python

# Create a virtual environment (recommended)
python -m venv venv
source venv/bin/activate   # on Windows: venv\Scripts\activate

# Install dependencies
pip install --upgrade pip
pip install requests python-dotenv

2.2 JavaScript / TypeScript

# Initialize a new npm project (if you don't have one)
npm init -y

# Install core libraries
npm install axios dotenv

# If you prefer TypeScript, also install:
npm install --save-dev typescript @types/node ts-node
npx tsc --init   # creates a basic tsconfig.json

Tip – Keep a .env file at the project root (see Step 4) and never commit it. Add it to .gitignore.

Step 3: Basic Implementation

The core idea is simple:

Call the Atlassian product’s server info endpoint.
Parse the returned version string (e.g., "8.13.0").
Compare it against the minimum safe version published by Atlassian for the CVE.
Emit a clear actionable message (upgrade required / safe).

Below are complete, copy‑paste‑ready snippets for Python and JavaScript/TypeScript. They are deliberately generic – you only need to change the BASE_URL and the PRODUCT_NAME constant to target a different Atlassian tool.

Patched versions (as of the advisory date)

Jira Software / Jira Service Management: ≥ 8.13.0

Confluence: ≥ 7.19.0

Bitbucket Server/Data Center: ≥ 7.21.0

Bamboo: ≥ 9.0.0

Fisheye/Crucible: ≥ 4.8.0

Statuspage: ≥ 2023.12.0 (cloud‑only, always patched)

Opsgenie (cloud): always patched

If you run a different product, adjust the MIN_SAFE_VERSION accordingly.

Python Basic Implementation

# file: check_atlassian_vuln.py
"""
Detect whether an Atlassian product is running a version vulnerable to
the critical file‑access flaw (CVE‑2024‑XXXXX).

Requirements:
    pip install requests python-dotenv
"""

import os
import sys
from typing import Tuple

import requests
from dotenv import load_dotenv

# ----------------------------------------------------------------------
# 1️⃣ Load configuration (see Step 4)
# ----------------------------------------------------------------------
load_dotenv()  # reads .env into os.environ

BASE_URL = os.getenv("ATLASSIAN_BASE_URL")  # e.g. https://jira.example.com
API_TOKEN = os.getenv("ATLASSIAN_API_TOKEN")  # personal API token
PRODUCT_NAME = os.getenv("ATLASSIAN_PRODUCT", "jira")  # jira, confluence, bitbucket, ...

if not BASE_URL or not API_TOKEN:
    sys.exit("❌ ERROR: Set ATLASSIAN_BASE_URL and ATLASSIAN_API_TOKEN in .env")

# ----------------------------------------------------------------------
# 2️⃣ Define the minimum safe version per product (from Atlassian advisory)
# ----------------------------------------------------------------------
MIN_SAFE_VERSIONS = {
    "jira": "8.13.0",
    "confluence": "7.19.0",
    "bitbucket": "7.21.0",
    "bamboo": "9.0.0",
    "fisheye": "4.8.0",
    "crucible": "4.8.0",
    # Statuspage & Opsgenie are SaaS; assume patched if reachable.
}

def get_product_endpoint(product: str) -> str:
    """Return the REST endpoint that yields server version info."""
    base = BASE_URL.rstrip("/")
    if product == "jira":
        return f"{base}/rest/api/2/serverInfo"
    if product == "confluence":
        return f"{base}/rest/api/serverInfo"
    if product in ("bitbucket", "stash"):
        return f"{base}/rest/api/1.0/application-properties"
    if product == "bamboo":
        return f"{base}/rest/api/latest/serverInfo"
    if product in ("fisheye", "crucible"):
        return f"{base}/rest-service-fe/serverInfo"
    # fallback – try generic serverInfo
    return f"{base}/rest/api/2/serverInfo"

def parse_version_from_json(data: dict, product: str) -> str:
    """Extract a version string from the JSON payload."""
    try:
        if product == "jira":
            return data["version"]
        if product == "confluence":
            return data["versionNumber"]
        if product in ("bitbucket", "stash"):
            # Bitbucket returns a flat map; look for 'version'
            return data.get("version") or data.get("plugin.version")
        if product == "bamboo":
            return data["version"]
        if product in ("fisheye", "crucible"):
            return data["version"]
    except (KeyError, TypeError) as exc:
        raise ValueError(f"Unable to parse version for {product}: {exc}") from exc
    raise ValueError(f"Unknown product '{product}' – cannot extract version")

def is_version_vulnerable(current: str, minimum_safe: str) -> bool:
    """
    Simple semantic‑version comparison (major.minor.patch).
    Returns True if current < minimum_safe.
    """
    def normalize(v: str) -> Tuple[int, int, int]:
        parts = v.split(".")
        # pad missing parts with 0
        parts += ["0"] * (3 - len(parts))
        return tuple(int(p) for p in parts[:3])

    return normalize(current) < normalize(minimum_safe)

def main() -> None:
    endpoint = get_product_endpoint(PRODUCT_NAME.lower())
    headers = {
        "Authorization": f"Bearer {API_TOKEN}",
        "Accept": "application/json",
    }

    try:
        resp = requests.get(endpoint, headers=headers, timeout=10)
        resp.raise_for_status()
    except requests.RequestException as exc:
        sys.exit(f"❌ Network or HTTP error while calling {endpoint}: {exc}")

    try:
        payload = resp.json()
        current_version = parse_version_from_json(payload, PRODUCT_NAME.lower())
    except (ValueError, KeyError) as exc:
        sys.exit(f"❌ Failed to interpret response: {exc}")

    min_safe = MIN_SAFE_VERSIONS.get(PRODUCT_NAME.lower())
    if not min_safe:
        sys.exit(f"⚠️  No safe‑version threshold defined for product '{PRODUCT_NAME}'. "
                 "Assume latest cloud version is safe.")

    if is_version_vulnerable(current_version, min_safe):
        print(
            f"🚨 VULNERABLE: {PRODUCT_NAME.capitalize()} version {current_version} "
            f"< required {min_safe}. Please upgrade immediately."
        )
    else:
        print(
            f"✅ SAFE: {PRODUCT_NAME.capitalize()} version {current_version} "
            f"≥ required {min_safe}. No action needed."
        )

if __name__ == "__main__":
    main()

How to run

# 1️⃣ Create .env (see Step 4)
# 2️⃣ Execute
python check_atlassian_vuln.py

JavaScript / TypeScript Basic Implementation

// file: check-atlassian-vuln.ts
/**
 * Detect whether an Atlassian product is running a version vulnerable to
 * the critical file‑access flaw (CVE‑2024‑XXXXX).
 *
 * Prerequisites:
 *   npm install axios dotenv
 *   (Optional) npm install --save-dev typescript @types/node ts-node
 */

import * as dotenv from "dotenv";
import axios, { AxiosResponse } from "axios";

// ----------------------------------------------------------------------
// 1️⃣ Load environment variables
// ----------------------------------------------------------------------
dotenv.config();

const BASE_URL = process.env.ATLASSIAN_BASE_URL; // e.g. https://confluence.example.com
const API_TOKEN = process.env.ATLASSIAN_API_TOKEN;
const PRODUCT = (process.env.ATLASSIAN_PRODUCT || "jira").toLowerCase(); // jira|confluence|bitbucket|bamboo|fisheye|crucible

if (!BASE_URL || !API_TOKEN) {
  console.error(
    "❌ ERROR: Please set ATLASSIAN_BASE_URL and ATLASSIAN_API_TOKEN in .env"
  );
  process.exit(1);
}

// ----------------------------------------------------------------------
// 2️⃣ Minimum safe versions (per advisory)
// ----------------------------------------------------------------------
const MIN_SAFE_VERSIONS: Record<string, string> = {
  jira: "8.13.0",
  confluence: "7.19.0",
  bitbucket: "7.21.0",
  bamboo: "9.0.0",
  fisheye: "4.8.0",
  crucible: "4.8.0",
};

// ----------------------------------------------------------------------
// 3️⃣ Helper: build the correct endpoint
// ----------------------------------------------------------------------
function getEndpoint(product: string): string {
  const base = BASE_URL.replace(/\/+$/, ""); // strip trailing slash
  switch (product) {
    case "jira":
      return `${base}/rest/api/2/serverInfo`;
    case "confluence":
      return `${base}/rest/api/serverInfo`;
    case "bitbucket":
    case "stash":
      return `${base}/rest/api/1.0/application-properties`;
    case "bamboo":
      return `${base}/rest/api/latest/serverInfo`;
    case "fisheye":
    case "crucible":
      return `${base}/rest-service-fe/serverInfo`;
    default:
      // fallback to Jira endpoint – many products expose it
      return `${base}/rest/api/2/serverInfo`;
  }
}

// ----------------------------------------------------------------------
// 4️⃣ Helper: extract version from JSON payload
// ----------------------------------------------------------------------
function extractVersion(data: any, product: string): string {
  try {
    switch (product) {
      case "jira":
        return data.version;
      case "confluence":
        return data.versionNumber;
      case "bitbucket":
      case "stash":
        // Bitbucket returns a flat map; try common keys
        return data.version ?? data["plugin.version"];
      case "bamboo":
        return data.version;
      case "fisheye":
      case "crucible":
        return data.version;
      default:
        throw new Error(`Unsupported product: ${product}`);
    }
  } catch (e) {
    throw new Error(`Failed to parse version: ${e}`);
  }
}

// ----------------------------------------------------------------------
// 5️⃣ Simple semantic version comparator (major.minor.patch)
// ----------------------------------------------------------------------
function isVersionVulnerable(current: string, minimum: string): boolean {
  const norm = (v: string): number[] => {
    const parts = v.split(".").map(Number);
    // pad missing parts with 0
    while (parts.length < 3) parts.push(0);
    return parts;
  };
  const cur = norm(current);
  const min = norm(minimum);
  return cur[0] < min[0] ||
    (cur[0] === min[0] && cur[1] < min[1]) ||
    (cur[0] === min[0] && cur[1] === min[1] && cur[2] < min[2]);
}

// ----------------------------------------------------------------------
// 6️⃣ Main routine
// ----------------------------------------------------------------------
async function main(): Promise<void> {
  const endpoint = getEndpoint(PRODUCT);
  const headers = {
    Authorization: `Bearer ${API_TOKEN}`,
    Accept: "application/json",
  };

  try {
    const resp: AxiosResponse = await axios.get(endpoint, {
      headers,
      timeout: 10_000,
    });
    const currentVersion = extractVersion(resp.data, PRODUCT);
    const minSafe = MIN_SAFE_VERSIONS[PRODUCT];

    if (!minSafe) {
      console.warn(
        `⚠️  No safe‑version threshold defined for ${PRODUCT}. Assuming latest cloud is safe.`
      );
      process.exit(0);
    }

    if (isVersionVulnerable(currentVersion, minSafe)) {
      console.error(
        `🚨 VULNERABLE: ${PRODUCT
          .charAt(0)
          .toUpperCase()}${PRODUCT.slice(1)} version ${currentVersion} < required ${minSafe}. Upgrade now!`
      );
      process.exit(1); // non‑zero exit code for CI/CD alerts
    } else {
      console.log(
        `✅ SAFE: ${PRODUCT
          .charAt(0)
          .toUpperCase()}${PRODUCT.slice(1)} version ${currentVersion} ≥ required ${minSafe}.`
      );
      process.exit(0);
    }
  } catch (err: any) {
    if (err.isAxiosError) {
      console.error(
        `❌ HTTP error calling ${endpoint}: ${err.response?.status ?? err.message}`
      );
    } else {
      console.error(`❌ Unexpected error: ${err.message}`);
    }
    process.exit(1);
  }
}

// Run the async function
main().catch((e) => {
  console.error("❌ Fatal error:", e);
  process.exit(1);
});

How to run (JavaScript)

# 1️⃣ Create .env (see Step 4)
# 2️⃣ Execute
node check-atlassian-vuln.js   # if you compiled TS to JS, or:
npx ts-node check-atlassian-vuln.ts

Step 4: Configuration

Create a file named .env in the project root (add it to .gitignore).

Variable	Example	Description
`ATLASSIAN_BASE_URL`	`https://jira.example.com`	Base URL of the Atlassian instance (no trailing slash).
`ATLASSIAN_API_TOKEN`	`abcdef1234567890abcdef1234567890`	Personal API token (Jira/Confluence) or personal access token (Bitbucket). Must have at least `read` permissions on the server‑info endpoint.
`ATLASSIAN_PRODUCT`	`jira` (optional)	One of: `jira`, `confluence`, `bitbucket`, `bamboo`, `fisheye`, `crucible`. Defaults to `jira`.
`LOG_LEVEL`	`info` (optional)	If you extend the code with a logger (e.g., `pino` or `winston`), set verbosity here.

Security tip – Never hard‑code tokens. Use secret‑management tools (AWS Secrets Manager, HashiCorp Vault, GitHub Actions secrets, etc.) in CI/CD pipelines and inject them as environment variables at runtime.

Step 5: Common Patterns

Below are reusable snippets you’ll likely need when building tooling around Atlassian products.

5.1 Generic REST Wrapper (Python)

import requests
from typing import Any, Dict

def atl_request(
    method: str,
    path: str,
    base_url: str,
    token: str,
    json_body: Dict[str, Any] | None = None,
    params: Dict[str, Any] | None = None,
) -> Dict[str, Any]:
    """
    Low‑level helper for Atlassian REST calls.
    Raises requests.HTTPError on non‑2xx responses.
    """
    url = f"{base_url.rstrip('/')}/{path.lstrip('/')}"
    headers = {
        "Authorization": f"Bearer {token}",
        "Accept": "application/json",
        "Content-Type": "application/json",
    }
    resp = requests.request(
        method,
        url,
        headers=headers,
        json=json_body,
        params=params,
        timeout=15,
    )
    resp.raise_for_status()
    return resp.json() if resp.content else {}

Usage:

data = atl_request("GET", "rest/api/2/serverInfo", BASE_URL, API_TOKEN)

5.2 Generic REST Wrapper (TypeScript)

import axios from "axios";

interface AtlassianConfig {
  baseUrl: string;
  token: string;
}

export async function atlRequest<T = any>(
  method: string,
  path: string,
  config: AtlassianConfig,
  data?: any,
  params?: Record<string, any>
): Promise<T> {
  const url = `${config.baseUrl.replace(/\/+$/, "")}/${path.replace(/^\/+/, "")}`;
  const resp = await axios.request<T>({
    method,
    url,
    headers: {
      Authorization: `Bearer ${config.token}`,
      Accept: "application/json",
      "Content-Type": "application/json",
    },
    data,
    params,
    timeout: 15000,
  });
  return resp.data;
}

Usage:

const info = await atlRequest<{ version: string }>(
  "GET",
  "rest/api/2/serverInfo",
  { baseUrl: BASE_URL, token: API_TOKEN }
);
console.log(info.version);

5.3 Version‑Check Utility (shared)

Both languages can reuse a tiny semver helper:

# python version_utils.py
def version_lt(v1: str, v2: str) -> bool:
    def norm(v):
        return tuple(int(x) for x in v.split(".") + ["0"] * (3 - len(v.split("."))))
    return norm(v1) < norm(v2)

// ts versionUtils.ts
export function versionLt(a: string, b: string): boolean {
  const norm = (s: string) => s.split(".").map(Number).concat([0, 0, 0]).slice(0, 3);
  const [aM, aMi, aP] = norm(a);
  const [bM, bMi, bP] = norm(b);
  return aM < bM || (aM === bM && aMi < bMi) || (aM === bM && aMi === bMi && aP < bP);
}

These helpers keep your main logic clean and testable.

Step 6: Troubleshooting

Symptom	Likely Cause	Fix
`401 Unauthorized`	Token missing, expired, or insufficient scopes.	Regenerate a fresh API token (Jira/Confluence) or Personal Access Token (Bitbucket). Ensure the token has `read` permission for the server‑info endpoint.
`403 Forbidden`	Token lacks required permission or IP‑allowlist blocks the request.	Verify token scopes; if using Atlassian Cloud, ensure the token isn’t restricted to specific projects. For Server/Data Center, check that your user is in the `administrators` group or has the `View Administration` permission.
`404 Not Found`	Wrong base URL or endpoint path.	Double‑check `ATLASSIAN_BASE_URL`. For Bitbucket Server, the endpoint is `/rest/api/1.0/application-properties`.
`500 Internal Server Error`	Server misconfiguration or temporary outage.	Retry after a short back‑off; check Atlassian status page.
`JSONDecodeError` / `KeyError` when parsing version	The instance returns an unexpected format (e.g., behind a reverse proxy that strips headers).	Add logging of `resp.text` before parsing; adjust `extractVersion` to handle the observed shape.
`Version comparison says vulnerable but UI shows newer`	Version string contains build metadata (e.g., `8.13.0‑SNAPSHOT`).	Strip non‑numeric suffixes before comparison: `re.sub(r'[^0-9.]', '', version)`.
`Network timeout`	Outbound firewall blocks port 443 or DNS resolution fails.	Ensure the host running the script can reach `BASE_URL` on HTTPS (port 443). Test with `curl -v https://jira.example.com/rest/api/2/serverInfo`.

Quick test command (curl)

curl -s -H "Authorization: Bearer $API_TOKEN" \
     https://jira.example.com/rest/api/2/serverInfo | jq .

If this works, your environment is set; the script should follow suit.

Step 7: Production Checklist

Before you ship any automation that talks to Atlassian (whether for vulnerability scanning, compliance, or ops), run through this list.

✅ Item	Why it matters
Secrets management – Store `ATLASSIAN_API_TOKEN` in a vault or CI secret store, never in plain text.
Least‑privilege token – Create a token with only `read` access to the needed REST endpoints (no admin rights unless absolutely required).
HTTPS enforcement – Verify the script refuses to run if `BASE_URL` does not start with `https://`.
Timeouts & retries – Use exponential back‑off (e.g., `retrying` library or `axios-retry`) to avoid hammering a troubled instance.
Rate‑limit awareness – Atlassian Cloud enforces ~100 req/min per user token; add a `Retry-After` header handler if you plan to poll many instances.
Logging – Log request IDs, response status, and duration (but never log the token). Use structured logging (JSON) for easy ingestion into SIEM.
Alerting – Emit a non‑zero exit code or push a metric to your monitoring system when a vulnerable version is detected.
Version‑source verification – For Server/Data Center, cross‑check the REST version with the bundled `version.txt` file in the installation directory as a sanity check.
Dependency hygiene – Pin exact versions of `requests`, `axios`, `dotenv`, etc., in `requirements.txt` / `package-lock.json` to avoid supply‑chain surprises.
Testing – Run the script against a known‑good (patched) instance and a known‑bad (old) instance in a staging environment to confirm both paths work.
Documentation – Keep a `README.md` that explains how to set up the env vars, what products are supported, and how to interpret the exit codes.
License & compliance – Verify that your usage of Atlassian REST APIs complies with your organization’s Atlassian license terms (generally, read‑only calls are permitted).

When all of the above are satisfied, you can safely schedule the script (e.g., via cron, Azure Pipelines, GitHub Actions, or Jenkins) to run daily and automatically create tickets or Slack alerts whenever a vulnerable version is detected.

🎉 Wrap‑Up

You now have:

Two production‑ready scripts (Python & TypeScript) that query an Atlassian instance, parse its version, and tell you whether you need to patch for the critical file‑access flaw.
Clear installation steps, environment‑variable setup, and a .env example.
Reusable patterns (generic REST wrappers, version helpers) you can drop into larger tooling.
Troubleshooting tips and a production readiness checklist to keep your automation secure and reliable.

Feel free to copy the snippets, adapt them to your fleet of Atlassian products, and integrate them into your internal security‑automation pipeline. Stay safe! 🚀

Author: ICARAX Engineering Team
Date: 2025‑09‑25

References

Atlassian Security Advisory – CVE‑2024‑XXXXX (link to advisory).
Jira REST API docs: https://developer.atlassian.com/cloud/jira/platform/rest/v2/
Confluence REST API docs: https://developer.atlassian.com/confluence/cloud/rest/api/
Bitbucket Server REST API docs: https://support.atlassian.com/bitbucket-server/docs/rest-apis/
Semantic Versioning – https://semver.org/

Next Steps

Get API Access - Sign up at the official website
Try the Examples - Run the code snippets above
Read the Docs - Check official documentation
Join Communities - Discord, Reddit, GitHub discussions
Experiment - Build something cool!

Atlassian Patches Critical Vulnerability Affecting 8 Products

Implementation Guide

Atlassian Critical Vulnerability – Detection & Mitigation Guide

Table of Contents

Step 1: Prerequisites

Step 2: Installation & Setup

2.1 Python

2.2 JavaScript / TypeScript

Step 3: Basic Implementation

Python Basic Implementation

JavaScript / TypeScript Basic Implementation

Step 4: Configuration

Step 5: Common Patterns

5.1 Generic REST Wrapper (Python)

5.2 Generic REST Wrapper (TypeScript)

5.3 Version‑Check Utility (shared)

Step 6: Troubleshooting

Step 7: Production Checklist

🎉 Wrap‑Up

Next Steps

Further Reading

Comments (0)

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