CVE-2022-33287
📋 TL;DR
This vulnerability allows attackers to read sensitive information from modem memory due to a buffer over-read in IPv6 packet processing. It affects devices with Qualcomm modems that handle IPv6 traffic. Successful exploitation could leak modem memory contents including potentially sensitive data.
💻 Affected Systems
- Qualcomm modem chipsets
📦 What is this software?
Snapdragon 1100 Wearable Platform Firmware by Qualcomm
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Snapdragon 1200 Wearable Platform Firmware by Qualcomm
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Snapdragon Ar2 Gen 1 Platform Firmware by Qualcomm
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Snapdragon Wear 1300 Platform Firmware by Qualcomm
View all CVEs affecting Snapdragon Wear 1300 Platform Firmware →
Snapdragon X5 Lte Modem Firmware by Qualcomm
⚠️ Risk & Real-World Impact
Worst Case
Complete modem memory disclosure including sensitive data like encryption keys, IMSI numbers, or device identifiers, potentially enabling further attacks.
Likely Case
Information disclosure of modem memory contents, potentially exposing device identifiers, network configuration data, or other sensitive information.
If Mitigated
Limited impact if proper network segmentation and monitoring are in place, though information disclosure still occurs.
🎯 Exploit Status
Exploitation requires sending specially crafted IPv6 packets to vulnerable modem. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Qualcomm security bulletin for specific patched versions
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/april-2023-bulletin
Restart Required: Yes
Instructions:
1. Check Qualcomm security bulletin for affected chipset details. 2. Contact device manufacturer for firmware updates. 3. Apply modem firmware update. 4. Reboot device.
🔧 Temporary Workarounds
Disable IPv6
allDisable IPv6 support on affected devices to prevent exploitation
Platform-specific IPv6 disable commands vary by OS
Network filtering
allFilter IPv6 packets at network perimeter
iptables -A INPUT -p ipv6 -j DROP (Linux)
netsh advfirewall firewall add rule name="Block IPv6" dir=in action=block protocol=41 (Windows)
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable devices
- Deploy network monitoring for anomalous IPv6 traffic patterns
🔍 How to Verify
Check if Vulnerable:
Check modem firmware version against Qualcomm security bulletin. No direct vulnerability check available.Check Version:
Device-specific modem firmware check commands vary by manufacturerVerify Fix Applied:
Verify modem firmware has been updated to version listed in Qualcomm security bulletin📡 Detection & Monitoring
Log Indicators:
- Unusual modem error logs
- Memory access violation logs in modem subsystem
Network Indicators:
- Malformed IPv6 packets targeting modem interfaces
- Unusual IPv6 traffic patterns
SIEM Query:
source="modem_logs" AND (error OR violation) AND ipv6