Vulnerability Name:

CVE-2022-20034 (CCN-219310)

Assigned:2021-10-12
Published:2022-02-07
Updated:2022-02-11
Summary:In Preloader XFLASH, there is a possible escalation of privilege due to an improper certificate validation. This could lead to local escalation of privilege for an attacker who has physical access to the device with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06160806; Issue ID: ALPS06160806.
CVSS v3 Severity:6.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
5.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/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): High
Integrity (I): High
Availibility (A): High
6.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
5.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/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): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-295
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2022-20034

Source: CCN
Type: MediaTek Web site
February 2022 Product Security Bulletin

Source: MISC
Type: Vendor Advisory
https://corp.mediatek.com/product-security-bulletin/February-2022

Source: XF
Type: UNKNOWN
mediatek-cve202220034-priv-esc(219310)

Vulnerable Configuration:Configuration 1:
  • cpe:/o:google:android:11.0:*:*:*:*:*:*:*
  • AND
  • cpe:/h:mediatek:mt6580:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6735:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6739:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6761:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6763:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6765:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6768:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6769:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6771:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6779:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6781:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6785:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6799:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6833:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6853:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6873:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6875:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6877:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6885:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6891:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt6893:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/h:mediatek:mt8167:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt8175:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt8183:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt8362a:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt8365:-:*:*:*:*:*:*:*
  • OR cpe:/h:mediatek:mt8385:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    google android 11.0
    mediatek mt6580 -
    mediatek mt6735 -
    mediatek mt6739 -
    mediatek mt6761 -
    mediatek mt6763 -
    mediatek mt6765 -
    mediatek mt6768 -
    mediatek mt6769 -
    mediatek mt6771 -
    mediatek mt6779 -
    mediatek mt6781 -
    mediatek mt6785 -
    mediatek mt6799 -
    mediatek mt6833 -
    mediatek mt6853 -
    mediatek mt6873 -
    mediatek mt6875 -
    mediatek mt6877 -
    mediatek mt6885 -
    mediatek mt6891 -
    mediatek mt6893 -
    mediatek mt8167 -
    mediatek mt8175 -
    mediatek mt8183 -
    mediatek mt8362a -
    mediatek mt8365 -
    mediatek mt8385 -