Vulnerability Name:

CVE-2019-5306 (CCN-157663)

Assigned:2019-02-28
Published:2019-02-28
Updated:2020-08-24
Summary: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.
CVSS v3 Severity:4.6 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
4.0 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
4.6 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
4.0 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-5306

Source: XF
Type: UNKNOWN
huawei-cve20195306-sec-bypass(157663)

Source: CCN
Type: huawei-sa-20190228-01-smartphone
FRP Bypass Vulnerability on Some Huawei Smartphones

Source: CONFIRM
Type: Vendor Advisory
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190228-01-smartphone-en

Vulnerable Configuration:Configuration 1:
  • cpe:/o:huawei:p20_firmware:*:*:*:*:*:*:*:* (Version < emily-al00a_9.0.0.167(c00e81r1p21t8))
  • AND
  • cpe:/h:huawei:p20:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/h:huawei:p20:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    huawei p20 firmware *
    huawei p20 -
    huawei p20 *