CVE-2022-23992
📋 TL;DR
CVE-2022-23992 is a critical vulnerability in Broadcom XCOM Data Transport 11.6 that allows remote attackers to execute arbitrary commands with elevated privileges due to insufficient input validation. This affects organizations using XCOM Data Transport for Windows, Linux, and UNIX. Attackers can potentially take complete control of affected systems.
💻 Affected Systems
- Broadcom XCOM Data Transport for Windows
- Broadcom XCOM Data Transport for Linux/UNIX
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote unauthenticated attacker gains full system control, installs persistent backdoors, exfiltrates sensitive data, and moves laterally across the network.
Likely Case
Remote attacker executes commands with elevated privileges, potentially compromising the entire XCOM server and accessing transferred data.
If Mitigated
Attack is blocked by network segmentation, proper input validation, or the system is not internet-facing.
🎯 Exploit Status
Based on CVSS 9.8 and description, exploitation appears straightforward once details are known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply patches from Broadcom security advisory
Restart Required: Yes
Instructions:
1. Review Broadcom security advisory 2. Download appropriate patches from Broadcom support portal 3. Apply patches following vendor instructions 4. Restart XCOM services 5. Verify patch application
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to XCOM servers to only trusted sources
Use firewall rules to limit inbound connections to XCOM ports from authorized IPs only
Input Validation Enhancement
allImplement additional input validation at network perimeter
Configure WAF rules to filter suspicious input patterns to XCOM endpoints
🧯 If You Can't Patch
- Isolate XCOM servers in separate network segments with strict access controls
- Monitor XCOM logs for unusual command execution patterns and network traffic
🔍 How to Verify
Check if Vulnerable:
Check XCOM version: On Windows check installed programs list, on Linux/UNIX check package manager or installation directory for version infoCheck Version:
Windows: Check Programs and Features; Linux/UNIX: Check installation logs or run vendor-provided version check utilityVerify Fix Applied:
Verify version is no longer 11.6 and check with vendor tools for patch status📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in XCOM logs
- Failed authentication attempts followed by successful command execution
- Unexpected process creation from XCOM services
Network Indicators:
- Unusual outbound connections from XCOM servers
- Suspicious payloads sent to XCOM ports
- Traffic patterns inconsistent with normal file transfers
SIEM Query:
source="xcom*" AND (event_type="command_execution" OR process_name="cmd.exe" OR process_name="/bin/sh")🔗 References
- https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/XCOM-Data-Transport---Windows-and-XCOM-Data-Transport--Linux--UNIX-Vulnerability-CVE-2022-23992/18750
- https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/XCOM-Data-Transport---Windows-and-XCOM-Data-Transport--Linux--UNIX-Vulnerability-CVE-2022-23992/18750
