CVE-2024-42465

9.8 CRITICAL

📋 TL;DR

This vulnerability allows attackers to perform unlimited authentication attempts against upKeeper Manager, enabling brute-force attacks to guess credentials. It affects all users of upKeeper Manager versions through 5.1.9, potentially leading to unauthorized access to the management system.

💻 Affected Systems

Products:
  • upKeeper Manager
Versions: through 5.1.9
Operating Systems: Windows, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: All default installations are vulnerable. The vulnerability affects the authentication mechanism regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of upKeeper Manager system leading to administrative control, potential lateral movement to managed systems, and data exfiltration.

🟠

Likely Case

Unauthorized access to upKeeper Manager interface allowing attackers to view/manage connected systems, modify configurations, or deploy malicious updates.

🟢

If Mitigated

Limited impact with proper network segmentation and monitoring, though authentication attempts may still cause service degradation.

🌐 Internet-Facing: HIGH - Internet-facing instances are directly vulnerable to automated brute-force attacks from anywhere.
🏢 Internal Only: MEDIUM - Internal instances are still vulnerable to insider threats or compromised internal systems, but attack surface is reduced.

🎯 Exploit Status

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

Exploitation requires no authentication and can be automated with simple brute-force tools. No special privileges needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 5.2.0 or later

Vendor Advisory: https://support.upkeeper.se/hc/en-us/articles/15432332385564-CVE-2024-42465-Lack-of-resources-and-rate-limiting-two-factor-authentication

Restart Required: Yes

Instructions:

1. Download upKeeper Manager version 5.2.0 or later from vendor portal. 2. Backup current configuration. 3. Install the update following vendor instructions. 4. Restart the upKeeper Manager service.

🔧 Temporary Workarounds

Network Access Control

all

Restrict network access to upKeeper Manager to trusted IP addresses only

Web Application Firewall

all

Implement WAF rules to limit authentication attempts per IP address

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate upKeeper Manager from untrusted networks
  • Enable comprehensive logging and monitoring for authentication attempts and implement alerting for suspicious patterns

🔍 How to Verify

Check if Vulnerable:

Check upKeeper Manager version in web interface or configuration files. Versions 5.1.9 and earlier are vulnerable.

Check Version:

Check web interface or consult upKeeper Manager documentation for version command

Verify Fix Applied:

Verify version is 5.2.0 or later and test authentication rate limiting by attempting multiple failed logins.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed authentication attempts from single IP
  • Unusual authentication patterns outside business hours
  • Successful authentication after many failures

Network Indicators:

  • High volume of POST requests to authentication endpoints
  • Traffic patterns consistent with brute-force tools

SIEM Query:

source="upkeeper" AND (event_type="auth_failure" OR event_type="login") | stats count by src_ip, user | where count > 10

🔗 References

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