CVE-2022-32192
📋 TL;DR
Couchbase Server versions 5.x through 7.x before 7.0.4 expose sensitive information to unauthorized actors. This information disclosure vulnerability allows attackers to access data they shouldn't have permission to view, affecting all deployments running vulnerable versions.
💻 Affected Systems
- Couchbase Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access sensitive configuration data, credentials, or internal system information leading to further compromise of the database or connected systems.
Likely Case
Unauthorized access to internal system information that could be used for reconnaissance or to facilitate other attacks.
If Mitigated
Limited impact if proper network segmentation and access controls prevent unauthorized access attempts.
🎯 Exploit Status
The vulnerability exposes information without authentication, making exploitation straightforward if the service is accessible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.0.4
Vendor Advisory: https://www.couchbase.com/alerts
Restart Required: Yes
Instructions:
1. Backup your Couchbase configuration and data. 2. Download Couchbase Server 7.0.4 or later from the official website. 3. Stop the Couchbase service. 4. Install the updated version. 5. Restart the Couchbase service. 6. Verify the upgrade was successful.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to Couchbase Server to only trusted IP addresses and networks
Use firewall rules to limit access: iptables -A INPUT -p tcp --dport 8091 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 8091 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Couchbase Server from untrusted networks
- Deploy web application firewall (WAF) rules to block suspicious access patterns to Couchbase endpoints
🔍 How to Verify
Check if Vulnerable:
Check Couchbase Server version via web console or CLI. If version is between 5.x and 7.x and less than 7.0.4, it is vulnerable.Check Version:
couchbase-cli server-info -c localhost:8091 -u Administrator -p password | grep versionVerify Fix Applied:
After patching, verify the version shows 7.0.4 or higher and test that sensitive endpoints no longer expose information to unauthorized requests.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to sensitive endpoints
- Unusual request patterns to Couchbase administrative interfaces
Network Indicators:
- External IP addresses accessing Couchbase administrative ports (8091, 8092, 18091, 18092)
- Unusual traffic volume to Couchbase endpoints
SIEM Query:
source="couchbase.log" AND ("401" OR "403" OR "unauthorized") AND ("GET" OR "POST") AND ("/pools" OR "/settings" OR "/diag")