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CVE-2021-43049

9.8 CRITICAL

📋 TL;DR

This vulnerability in TIBCO BusinessConnect Container Edition allows unauthenticated attackers with network access to retrieve user credentials from the database component. Affected systems running version 1.1.0 or below are at risk of credential exposure.

💻 Affected Systems

Products:
  • TIBCO BusinessConnect Container Edition
Versions: 1.1.0 and below
Operating Systems: Container-based deployments (typically Linux)
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the Database component specifically. Container edition suggests Docker/Kubernetes deployments.

📦 What is this software?

Businessconnect by Tibco

View all CVEs affecting Businessconnect →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise through credential theft leading to data exfiltration, privilege escalation, and lateral movement across the network.

🟠

Likely Case

Attackers steal credentials to gain unauthorized access to the BusinessConnect system and potentially connected databases or services.

🟢

If Mitigated

Limited impact if system is isolated, uses strong network segmentation, and credentials are rotated immediately after detection.

🌐 Internet-Facing: HIGH - Unauthenticated network access vulnerability makes internet-exposed systems extremely vulnerable to credential harvesting.
🏢 Internal Only: HIGH - Even internally, unauthenticated attackers on the network can exploit this to steal credentials and pivot to other systems.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

CVSS 9.8 indicates critical severity with low attack complexity. Unauthenticated network access makes exploitation trivial for attackers with network reachability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 1.1.1 or later

Vendor Advisory: https://www.tibco.com/support/advisories/2022/01/tibco-security-advisory-february-15-2022-tibco-bcce-2021-43049

Restart Required: Yes

Instructions:

1. Download TIBCO BusinessConnect Container Edition version 1.1.1 or later from TIBCO support. 2. Stop affected containers. 3. Deploy updated container images. 4. Restart services. 5. Verify functionality.

🔧 Temporary Workarounds

Network Isolation

linux

Restrict network access to BusinessConnect containers using firewall rules or network policies

iptables -A INPUT -p tcp --dport <businessconnect_port> -s <trusted_ip> -j ACCEPT
iptables -A INPUT -p tcp --dport <businessconnect_port> -j DROP

Container Network Segmentation

all

Use Docker network segmentation or Kubernetes Network Policies to isolate vulnerable containers

kubectl apply -f network-policy.yaml (with appropriate deny-all egress/ingress rules)

🧯 If You Can't Patch

  • Immediately rotate all credentials stored in the BusinessConnect database
  • Implement strict network access controls to limit exposure to trusted IPs only

🔍 How to Verify

Check if Vulnerable:

Check TIBCO BusinessConnect Container Edition version. If version is 1.1.0 or below, system is vulnerable.

Check Version:

docker inspect <container_name> | grep -i version OR check application logs/configuration files for version information

Verify Fix Applied:

Verify version is 1.1.1 or later and test that unauthenticated credential retrieval attempts fail.

📡 Detection & Monitoring

Log Indicators:

  • Unusual database access patterns
  • Failed authentication attempts followed by successful credential retrieval
  • Connection attempts from unexpected IP addresses

Network Indicators:

  • Unusual traffic to database port from unauthorized sources
  • Credential harvesting patterns in network traffic

SIEM Query:

source="businessconnect" AND (event_type="database_access" OR event_type="credential_retrieval") | stats count by src_ip

📊 Metadata

CVE ID: CVE-2021-43049
CVSS v3 Score: 9.8 (CRITICAL)
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: February 15, 2022
Last Updated: November 21, 2024

🔗 References

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