Vulnerability Name:

CVE-2021-39668 (CCN-219594)

Assigned:2021-08-23
Published:2022-02-07
Updated:2022-02-17
Summary:In onActivityViewReady of DetailDialog.kt, there is a possible Intent Redirect due to a confused deputy. This could lead to local escalation of privilege that allows actions performed as the System UI, with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-193445603
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.2 High (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-610
Vulnerability Consequences:Gain Privileges
References:Source: CCN
Type: Google Web site
Android

Source: MITRE
Type: CNA
CVE-2021-39668

Source: XF
Type: UNKNOWN
android-cve202139668-priv-esc(219594)

Source: CCN
Type: Android Open Source Project
Android Security Bulletin—February 2022

Source: MISC
Type: Patch, Vendor Advisory
https://source.android.com/security/bulletin/2022-02-01

Vulnerable Configuration:Configuration 1:
  • cpe:/o:google:android:11.0:*:*:*:*:*:*:*
  • OR cpe:/o:google:android:12.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:google:android:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    google android 11.0
    google android 12.0
    google android -