CVE-2022-48498 – This vulnerability involves configuration defec... (How to Fix)

Q: What is the severity of CVE-2022-48498?

CVE-2022-48498 has a CVSS score of 7.5 (HIGH). This vulnerability involves configuration defects in the secure OS module of certain Huawei devices, allowing attackers to cause denial-of-service conditions. It affects Huawei smartphone users running vulnerable firmware versions. Successful exploitation disrupts device availability but does not compromise data confidentiality or integrity.

📋 TL;DR

This vulnerability involves configuration defects in the secure OS module of certain Huawei devices, allowing attackers to cause denial-of-service conditions. It affects Huawei smartphone users running vulnerable firmware versions. Successful exploitation disrupts device availability but does not compromise data confidentiality or integrity.

💻 Affected Systems

Products:

Huawei smartphones with Kirin chipsets

Versions: Specific firmware versions prior to June 2023 security updates

Operating Systems: HarmonyOS, EMUI

Default Config Vulnerable: ⚠️ Yes

Notes: Affects devices with specific secure OS module configurations; exact models not specified in public advisory.

📦 What is this software?

Emui by Huawei

View all CVEs affecting Emui →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device unavailability requiring physical reset or service center intervention to restore functionality.

🟠

Likely Case

Temporary service disruption affecting specific secure OS functions until device restart.

🟢

If Mitigated

Minimal impact with proper configuration hardening and timely patching.

🌐 Internet-Facing: LOW - Requires local access or malicious app installation, not directly exploitable over internet.

🏢 Internal Only: MEDIUM - Could be exploited by malicious apps or users with physical access to devices.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires local access and ability to execute code in secure OS context; no public exploit code available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: June 2023 security update or later

Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2023/6/

Restart Required: Yes

Instructions:

1. Check for updates in Settings > System & updates > Software update. 2. Download and install June 2023 security update. 3. Restart device when prompted.

🔧 Temporary Workarounds

Disable unnecessary secure services

all

Reduce attack surface by disabling non-essential secure OS features

Application whitelisting

all

Restrict installation to trusted applications only

🧯 If You Can't Patch

Isolate affected devices from critical networks
Implement strict application control policies

🔍 How to Verify

Check if Vulnerable:

Check firmware version in Settings > About phone > Build number; compare with June 2023 security bulletin.

Check Version:

Settings navigation only; no CLI command available on consumer devices.

Verify Fix Applied:

Confirm firmware version includes June 2023 security patches in Settings > Security > Security update.

📡 Detection & Monitoring

Log Indicators:

Unexpected secure OS module crashes
Abnormal secure service termination logs

Network Indicators:

None - local exploitation only

SIEM Query:

Device logs showing secure OS service failures or unexpected reboots

📊 Metadata

CVE ID: CVE-2022-48498

CVSS v3 Score: 7.5 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE: CWE-770

Published: June 19, 2023

Last Updated: December 12, 2024

🔗 References

https://consumer.huawei.com/en/support/bulletin/2023/6/ Vendor Advisory
https://consumer.huawei.com/en/support/bulletin/2023/6/ Vendor Advisory

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🔗 Related Vulnerabilities

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