CVE-2022-26233 – CVE-2022-26233 is a directory traversal vulnera... (How to Fix)

Q: What is the severity of CVE-2022-26233?

CVE-2022-26233 has a CVSS score of 7.5 (HIGH). CVE-2022-26233 is a directory traversal vulnerability in Barco Control Room Management Suite that allows attackers to access sensitive files and components by manipulating URL paths. The vulnerability affects versions through Suite 2.9 Build 0275. Attackers can exploit this without authentication using specially crafted GET requests.

📋 TL;DR

CVE-2022-26233 is a directory traversal vulnerability in Barco Control Room Management Suite that allows attackers to access sensitive files and components by manipulating URL paths. The vulnerability affects versions through Suite 2.9 Build 0275. Attackers can exploit this without authentication using specially crafted GET requests.

💻 Affected Systems

Products:

Barco Control Room Management Suite

Versions: Through Suite 2.9 Build 0275

Operating Systems: Windows, Linux

Default Config Vulnerable: ⚠️ Yes

Notes: All installations with default configurations are vulnerable. The system must be accessible via HTTP/HTTPS.

📦 What is this software?

Control Room Management Suite by Barco

View all CVEs affecting Control Room Management Suite →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise through access to configuration files, credentials, and sensitive system components leading to data exfiltration or further attacks.

🟠

Likely Case

Unauthorized access to sensitive files containing configuration data, credentials, or proprietary information.

🟢

If Mitigated

Limited impact with proper network segmentation and access controls preventing external exploitation.

🌐 Internet-Facing: HIGH - Exploitation requires only HTTP GET requests and is unauthenticated.

🏢 Internal Only: MEDIUM - Internal attackers could still exploit this, but requires network access to the system.

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploit details and proof-of-concept code are publicly available. The vulnerability requires minimal technical skill to exploit.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Suite 2.9 Build 0276 or later

Vendor Advisory: https://www.barco.com/en/support/software/R33050099?majorVersion=2&minorVersion=9&patchVersion=0&buildVersion=276

Restart Required: Yes

Instructions:

1. Download the latest version from Barco's support portal. 2. Backup current configuration. 3. Install the update following vendor instructions. 4. Restart the Control Room Management service.

🔧 Temporary Workarounds

Web Application Firewall (WAF) Rules

all

Block requests containing directory traversal patterns in URLs

WAF rule: Block requests containing "GET /..\.." or similar path traversal patterns

Network Segmentation

all

Restrict access to Barco Control Room Management to trusted networks only

Firewall rule: Allow access only from specific IP ranges

🧯 If You Can't Patch

Implement strict network access controls to limit exposure to trusted sources only
Deploy a WAF with rules to detect and block directory traversal attempts

🔍 How to Verify

Check if Vulnerable:

Test with curl: curl -k 'https://[target]/..\..\windows\win.ini' (adjust path for OS) and check for successful file retrieval

Check Version:

Check version in Control Room Management web interface or configuration files

Verify Fix Applied:

Attempt the same test after patching - should receive 403/404 error instead of file contents

📡 Detection & Monitoring

Log Indicators:

HTTP GET requests containing "/..\.." patterns
Unusual file access patterns from web logs
403/404 errors for traversal attempts after patching

Network Indicators:

HTTP requests with directory traversal sequences in URL paths
Unusual file downloads from web server

SIEM Query:

source="web_logs" AND (url="*GET /..\\..*" OR url="*%2e%2e%5c%2e%2e*")

📊 Metadata

CVE ID: CVE-2022-26233

CVSS v3 Score: 7.5 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE: CWE-22

Published: April 3, 2022

Last Updated: November 21, 2024

🔗 References

http://packetstormsecurity.com/files/166577/Barco-Control-Room-Management-Suite-Directory-Traversal.html Exploit,Third Party Advisory,VDB Entry
http://seclists.org/fulldisclosure/2022/Apr/0 Exploit,Mailing List,Third Party Advisory
http://packetstormsecurity.com/files/166577/Barco-Control-Room-Management-Suite-Directory-Traversal.html Exploit,Third Party Advisory,VDB Entry
http://seclists.org/fulldisclosure/2022/Apr/0 Exploit,Mailing List,Third Party Advisory

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