CVE-2025-23363
📋 TL;DR
This CVE describes an open redirect vulnerability in Siemens Teamcenter's SSO login service across multiple versions. An attacker can craft malicious links that redirect legitimate users to external sites, potentially stealing valid session data. Affected users include all organizations running vulnerable Teamcenter versions who click on attacker-provided links.
💻 Affected Systems
- Siemens Teamcenter
📦 What is this software?
Teamcenter by Siemens
Teamcenter by Siemens
Teamcenter by Siemens
Teamcenter by Siemens
Teamcenter by Siemens
Teamcenter by Siemens
⚠️ Risk & Real-World Impact
Worst Case
Session hijacking leading to unauthorized access to Teamcenter systems, data theft, and potential lateral movement within the network.
Likely Case
Credential theft or session compromise for individual users who click malicious links, potentially leading to unauthorized access to their Teamcenter accounts.
If Mitigated
Minimal impact if users are trained not to click suspicious links and proper URL validation is implemented.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) and knowledge of the Teamcenter instance URL. No authentication bypass is needed to craft the malicious link.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V14.3.0.14, V2312.0010, V2406.0008, V2412.0004 or later
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-656895.html
Restart Required: No
Instructions:
1. Identify your Teamcenter version. 2. Download and apply the appropriate patch from Siemens support portal. 3. Verify the patch installation. 4. Test SSO functionality after patching.
🔧 Temporary Workarounds
Input Validation Enhancement
allImplement server-side validation to reject URLs with external domains in SSO login parameters
Configuration dependent - consult Siemens documentation for custom validation rules
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block redirects to external domains from SSO endpoints
- User awareness training about phishing risks and not clicking suspicious Teamcenter links
🔍 How to Verify
Check if Vulnerable:
Check Teamcenter version against affected versions list. Test SSO endpoint with external URL parameter to see if redirect occurs.Check Version:
Check Teamcenter administration console or consult Siemens documentation for version checking commands specific to your deployment.Verify Fix Applied:
After patching, attempt to trigger the redirect with external URL parameters - should be blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual redirect patterns in SSO logs
- Multiple failed redirect attempts with external domains
- User complaints about unexpected redirects
Network Indicators:
- Outbound connections from Teamcenter server to unexpected external domains following SSO requests
SIEM Query:
source="teamcenter" AND (url_contains="redirect" OR url_contains="sso") AND dest_domain NOT IN (allowed_domains)