CVE-2023-43488
📋 TL;DR
This vulnerability allows low-privileged applications to modify critical system properties to enable ADB over network, potentially granting attackers privileged shell access without physical USB connection. Affects Bosch BMA4xx series sensors and potentially other Android-based systems where ADB debugging is available.
💻 Affected Systems
- Bosch BMA4xx series sensors (BMA423, BMA456, etc.)
📦 What is this software?
Ctrlx Hmi Web Panel Wr2107 Firmware by Boschrexroth
View all CVEs affecting Ctrlx Hmi Web Panel Wr2107 Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain root/privileged shell access on affected devices, enabling complete system compromise, data theft, and persistent backdoor installation.
Likely Case
Local privilege escalation allowing malicious apps to gain elevated permissions and access sensitive system resources.
If Mitigated
Limited impact if ADB debugging is disabled and proper app sandboxing is enforced.
🎯 Exploit Status
Requires local app installation or execution. Exploitation involves modifying system properties to enable ADB over network.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Bosch security advisory for specific patched versions
Vendor Advisory: https://psirt.bosch.com/security-advisories/BOSCH-SA-175607.html
Restart Required: Yes
Instructions:
1. Check Bosch security advisory for affected products. 2. Apply firmware updates from Bosch. 3. Restart devices after update. 4. Verify ADB debugging is disabled in production.
🔧 Temporary Workarounds
Disable ADB debugging
androidDisable Android Debug Bridge functionality in production environments
adb shell settings put global adb_enabled 0
adb shell setprop persist.adb.tcp.port -1
Restrict app permissions
allImplement strict app sandboxing and permission controls
🧯 If You Can't Patch
- Disable ADB debugging completely in production devices
- Implement network segmentation to isolate affected devices from critical networks
🔍 How to Verify
Check if Vulnerable:
Check if ADB can be enabled via system property modification by low-privileged apps. Test with: adb shell getprop | grep adbCheck Version:
adb shell getprop ro.build.version.incrementalVerify Fix Applied:
Verify ADB cannot be enabled via property modification and check firmware version against patched versions.📡 Detection & Monitoring
Log Indicators:
- Unexpected ADB service activation
- System property modification attempts for adb.* properties
- Privilege escalation attempts
Network Indicators:
- Unexpected ADB port (5555) opening on network
- ADB protocol traffic from unauthorized sources
SIEM Query:
source="android" AND (event="property_set" AND property LIKE "adb_%") OR (event="service_start" AND service="adbd")