CVE-2023-4336
📋 TL;DR
CVE-2023-4336 exposes Broadcom RAID Controller web interfaces to session hijacking attacks because HTTP cookies lack the Secure attribute, allowing them to be transmitted over unencrypted connections. This affects organizations using Broadcom RAID Controllers with web management interfaces. Attackers can intercept cookies to gain unauthorized access to storage management systems.
💻 Affected Systems
- Broadcom RAID Controllers with web management interface
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full administrative compromise of RAID storage systems leading to data destruction, ransomware deployment, or exfiltration of sensitive data.
Likely Case
Unauthorized access to storage management interface allowing configuration changes, performance degradation, or data exposure.
If Mitigated
Limited impact if HTTPS is enforced and network segmentation restricts access to management interfaces.
🎯 Exploit Status
Exploitation requires intercepting HTTP traffic containing session cookies, which is straightforward with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Broadcom advisory for specific patched firmware versions
Vendor Advisory: https://www.broadcom.com/support/resources/product-security-center
Restart Required: Yes
Instructions:
1. Check Broadcom advisory for affected controller models and firmware versions. 2. Download updated firmware from Broadcom support portal. 3. Apply firmware update following Broadcom documentation. 4. Verify Secure attribute is set on cookies after update.
🔧 Temporary Workarounds
Enforce HTTPS Only
allConfigure web interface to use HTTPS exclusively and disable HTTP access
Refer to Broadcom RAID Controller documentation for HTTPS configuration steps
Network Segmentation
allRestrict access to RAID controller management interface to trusted networks only
Configure firewall rules to allow access only from management VLANs
🧯 If You Can't Patch
- Implement strict network segmentation to isolate RAID controllers from untrusted networks
- Deploy web application firewall (WAF) to monitor and block cookie manipulation attempts
🔍 How to Verify
Check if Vulnerable:
Inspect web interface cookies using browser developer tools; check if Secure attribute is missing on session cookies when accessing via HTTPCheck Version:
Check firmware version through RAID controller web interface or management softwareVerify Fix Applied:
After patching, verify cookies have Secure attribute set and HTTP access is disabled or redirected to HTTPS📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful login from unusual IP
- Configuration changes from unexpected sources
Network Indicators:
- HTTP traffic to RAID controller management ports containing session cookies
- Unencrypted authentication traffic to controller management interface
SIEM Query:
source_ip=RAID_CONTROLLER_IP AND (http_cookie CONTAINS "session" OR http_cookie CONTAINS "auth") AND NOT protocol="HTTPS"