CVE-2024-57604

9.8 CRITICAL

📋 TL;DR

A privilege escalation vulnerability in MaysWind ezBookkeeping 0.7.0 allows remote attackers to gain elevated privileges through manipulation of the token component. This affects all users running the vulnerable version of the software. Attackers can potentially take full control of affected systems.

💻 Affected Systems

Products:
  • MaysWind ezBookkeeping
Versions: 0.7.0
Operating Systems: All platforms running ezBookkeeping
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of version 0.7.0 are vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with administrative access, data theft, and potential lateral movement to other systems.

🟠

Likely Case

Unauthorized administrative access to the ezBookkeeping application, allowing data manipulation, configuration changes, and potential access to underlying server resources.

🟢

If Mitigated

Limited impact with proper network segmentation and access controls, though application-level compromise would still occur.

🌐 Internet-Facing: HIGH - Remote exploitation capability makes internet-facing instances immediately vulnerable to attack.
🏢 Internal Only: HIGH - Even internally hosted instances are vulnerable to both internal and external attackers who can reach the service.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability appears to be token manipulation that can be exploited remotely without authentication. Public references suggest exploitation details are available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: No official vendor advisory found

Restart Required: No

Instructions:

1. Check for updated version from official sources. 2. If no patch available, implement workarounds. 3. Consider alternative software if security updates are not provided.

🔧 Temporary Workarounds

Network Isolation

linux

Restrict network access to ezBookkeeping to only trusted IP addresses

iptables -A INPUT -p tcp --dport [ezbookkeeping_port] -s [trusted_ip] -j ACCEPT
iptables -A INPUT -p tcp --dport [ezbookkeeping_port] -j DROP

Application Firewall Rules

all

Implement WAF rules to block suspicious token manipulation attempts

🧯 If You Can't Patch

  • Immediately take the system offline and migrate to alternative software
  • Implement strict network segmentation and monitor all access attempts to the service

🔍 How to Verify

Check if Vulnerable:

Check the application version in the web interface or configuration files. If version is 0.7.0, the system is vulnerable.

Check Version:

Check web interface or examine application files for version information

Verify Fix Applied:

Verify that the application has been updated to a version later than 0.7.0 or has been completely removed from service.

📡 Detection & Monitoring

Log Indicators:

  • Unusual token manipulation attempts
  • Multiple failed authentication attempts followed by successful privileged access
  • Administrative actions from unexpected user accounts

Network Indicators:

  • Unusual traffic patterns to token-related endpoints
  • Requests with manipulated token parameters

SIEM Query:

source="ezbookkeeping" AND (event_type="privilege_escalation" OR token_manipulation="true")

🔗 References

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