CVE-2023-3065
📋 TL;DR
This CVE describes an authentication bypass vulnerability in the Mobatime AMXGT100 mobile application. Attackers can bypass authentication mechanisms to gain unauthorized access to the application's functionality. This affects all users of Mobatime AMXGT100 mobile application versions through 1.3.20.
💻 Affected Systems
- Mobatime mobile application AMXGT100
📦 What is this software?
Amxgt 100 by Mobatime
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the mobile application, allowing attackers to access sensitive time tracking data, manipulate records, or perform unauthorized actions as legitimate users.
Likely Case
Unauthorized access to employee time tracking data, potential manipulation of work hours, and access to personal information stored in the application.
If Mitigated
Limited impact if proper network segmentation and access controls prevent the vulnerable application from accessing sensitive backend systems.
🎯 Exploit Status
The vulnerability allows authentication bypass without credentials, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.21 or later
Vendor Advisory: https://borelenzo.github.io/stuff/2023/06/02/cve-2023-3064_65_66.html
Restart Required: Yes
Instructions:
1. Update the Mobatime AMXGT100 mobile application to version 1.3.21 or later from the official app store. 2. Restart the application after update. 3. Verify the update was successful by checking the version number in app settings.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to the application's backend services to prevent exploitation from unauthorized networks.
Application Removal
allRemove vulnerable versions of the application from devices until patched.
🧯 If You Can't Patch
- Isolate affected devices on a restricted network segment
- Implement additional authentication layers at the network or proxy level
🔍 How to Verify
Check if Vulnerable:
Check the application version in the app settings. If version is 1.3.20 or earlier, the system is vulnerable.Check Version:
Check within the mobile application settings menu for version information.Verify Fix Applied:
Verify the application version is 1.3.21 or later in the app settings.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication patterns
- Multiple failed login attempts followed by successful access without proper credentials
- Access from unexpected locations or devices
Network Indicators:
- Unusual API calls to authentication endpoints
- Traffic patterns indicating bypass of normal authentication flows
SIEM Query:
source="mobile_app_logs" AND (event_type="authentication" AND result="success" AND (credential_check="bypassed" OR auth_method="none"))