CVE-2024-57726

9.9 CRITICAL

📋 TL;DR

SimpleHelp remote support software versions 5.5.7 and earlier contain an authorization vulnerability where low-privilege technicians can create API keys with excessive permissions. These API keys can be used to escalate privileges to server administrator role, potentially granting full control over the SimpleHelp server. Organizations using SimpleHelp v5.5.7 or earlier are affected.

💻 Affected Systems

Products:
  • SimpleHelp Remote Support Software
Versions: 5.5.7 and earlier
Operating Systems: Windows, Linux, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with technician accounts are vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker with low-privilege technician access can escalate to full server administrator, gaining complete control over the SimpleHelp server, potentially accessing all connected systems and sensitive data.

🟠

Likely Case

Malicious insider or compromised technician account creates admin-level API keys, leading to unauthorized administrative access and potential data exfiltration or system compromise.

🟢

If Mitigated

With proper access controls and monitoring, unauthorized API key creation would be detected and prevented before privilege escalation occurs.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Exploitation requires valid technician credentials but is straightforward once authenticated.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 5.5.8 or later

Vendor Advisory: https://simple-help.com/kb---security-vulnerabilities-01-2025#security-vulnerabilities-in-simplehelp-5-5-7-and-earlier

Restart Required: Yes

Instructions:

1. Download SimpleHelp v5.5.8 or later from official website. 2. Backup current installation. 3. Run installer to upgrade. 4. Restart SimpleHelp service.

🔧 Temporary Workarounds

Restrict Technician API Access

all

Temporarily disable API key creation for technician accounts until patching.

Monitor API Key Creation

all

Implement logging and alerting for API key creation events.

🧯 If You Can't Patch

  • Remove all technician accounts or restrict to minimal necessary privileges
  • Implement network segmentation to isolate SimpleHelp server from critical systems

🔍 How to Verify

Check if Vulnerable:

Check SimpleHelp version in web interface or installation directory. Versions 5.5.7 or earlier are vulnerable.

Check Version:

Check web interface or look for version.txt in installation directory

Verify Fix Applied:

Verify version is 5.5.8 or later and test that technician accounts cannot create admin-level API keys.

📡 Detection & Monitoring

Log Indicators:

  • Unusual API key creation events
  • Privilege escalation attempts
  • Administrative actions from technician accounts

Network Indicators:

  • API requests from unexpected sources
  • Unusual authentication patterns

SIEM Query:

source="simplehelp" AND (event="api_key_created" OR event="privilege_change")

🔗 References

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