CVE-2023-28574
📋 TL;DR
This vulnerability allows memory corruption in Qualcomm's Diag handler when processing commands to configure event listeners. Attackers could potentially execute arbitrary code or cause denial of service on affected devices. This affects smartphones, tablets, and other devices using vulnerable Qualcomm chipsets.
💻 Affected Systems
- Qualcomm chipsets with Diag services enabled
📦 What is this software?
Snapdragon 4 Gen 2 Mobile Platform Firmware by Qualcomm
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Snapdragon 8 Gen 2 Mobile Platform Firmware by Qualcomm
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Snapdragon 8 Gen 2 Mobile Platform Firmware by Qualcomm
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Snapdragon 835 Mobile Pc Platform Firmware by Qualcomm
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Snapdragon Ar2 Gen 1 Platform Firmware by Qualcomm
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Snapdragon X65 5g Modem Rf System Firmware by Qualcomm
View all CVEs affecting Snapdragon X65 5g Modem Rf System Firmware →
Snapdragon X70 Modem Rf System Firmware by Qualcomm
View all CVEs affecting Snapdragon X70 Modem Rf System Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, data theft, or persistent backdoor installation
Likely Case
Device crash/reboot (denial of service) or limited code execution in privileged context
If Mitigated
Denial of service only if memory corruption cannot be leveraged for code execution
🎯 Exploit Status
Exploitation requires sending specially crafted Diag commands. No public exploit code available as of knowledge cutoff.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to November 2023 Qualcomm security bulletin for specific chipset patches
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/november-2023-bulletin
Restart Required: Yes
Instructions:
1. Check Qualcomm November 2023 security bulletin for your chipset. 2. Obtain firmware update from device manufacturer. 3. Apply update following manufacturer instructions. 4. Reboot device.
🔧 Temporary Workarounds
Disable Diag services
allDisable Qualcomm Diag diagnostic services if not required
Device-specific - consult manufacturer documentation
Network segmentation
linuxRestrict access to Diag service ports
iptables -A INPUT -p tcp --dport [diag_port] -j DROP
ufw deny [diag_port]
🧯 If You Can't Patch
- Implement strict network access controls to Diag service ports
- Monitor for abnormal Diag command patterns and device crashes
🔍 How to Verify
Check if Vulnerable:
Check chipset version and compare against Qualcomm's November 2023 security bulletinCheck Version:
Device-specific - typically 'getprop ro.bootloader' or similar on Android devicesVerify Fix Applied:
Verify firmware version includes November 2023 Qualcomm security patches📡 Detection & Monitoring
Log Indicators:
- Unexpected Diag service activity
- Device crashes/reboots
- Memory corruption errors in system logs
Network Indicators:
- Traffic to Diag service ports (typically 9200-9210)
- Unusual command patterns to Diag services
SIEM Query:
source="*diag*" OR "Qualcomm Diag" AND (event="crash" OR "memory corruption" OR "unexpected command")