Huawei P20 prior 9.0.0.167(C00E81R1P21T8) Factory Reset Protection access control

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability classified as critical was found in Huawei P20 (Smartphone Operating System). Affected by this vulnerability is an unknown functionality of the component Factory Reset Protection. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

There is a Factory Reset Protection (FRP) bypass security vulnerability in P20 Huawei smart phones versions before Emily-AL00A 9.0.0.167(C00E81R1P21T8). When re-configuring the mobile phone using the FRP function, an attacker can delete the activation lock after a series of operations. As a result, the FRP function is bypassed and the attacker gains access to the smartphone.

The bug was discovered 02/28/2019. The weakness was published 06/04/2019 (Website). It is possible to read the advisory at huawei.com. This vulnerability is known as CVE-2019-5306 since 01/04/2019. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/19/2020). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 96 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 9.0.0.167(C00E81R1P21T8) eliminates this vulnerability.

Similar entry is available at 135952.

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VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.6
NVD Vector: 🔍

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: P20 9.0.0.167(C00E81R1P21T8)

Timelineinfoedit

01/04/2019 🔍
02/28/2019 +55 days 🔍
06/04/2019 +96 days 🔍
06/05/2019 +1 days 🔍
06/19/2020 +380 days 🔍

Sourcesinfoedit

Vendor: https://www.huawei.com/

Advisory: huawei.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-5306 (🔍)
OSVDB: - Huawei P20 smartphones Factory Reset Protection (FRP) security bypass

See also: 🔍

Entryinfoedit

Created: 06/05/2019 09:15 AM
Updated: 06/19/2020 12:07 PM
Changes: (1) advisory_confirm_url
Complete: 🔍

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