Vulnerability Name:

CVE-2021-30756 (CCN-208891)

Assigned:2021-05-24
Published:2021-05-24
Updated:2022-06-28
Summary:A local attacker may be able to view Now Playing information from the lock screen. This issue is fixed in macOS Big Sur 11.4, iOS 14.6 and iPadOS 14.6. A privacy issue in Now Playing was addressed with improved permissions.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-30756

Source: XF
Type: UNKNOWN
apple-macos-cve202130756-info-disc(208891)

Source: CCN
Type: Apple security document HT212528
About the security content of iOS 14.6 and iPadOS 14.6

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212528

Source: CCN
Type: Apple security document HT212529
About the security content of macOS Big Sur 11.4

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212529

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 14.6)
  • OR cpe:/o:apple:macos:*:*:*:*:*:*:*:* (Version >= 11.0 and < 11.4)
  • OR cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.6)

    • Configuration CCN 1:
  • cpe:/o:apple:ipados:14.5:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:14.5:*:*:*:*:*:*:*
  • OR cpe:/o:apple:macos_big_sur:11.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple iphone os *
    apple macos *
    apple ipados *
    apple ipados 14.5
    apple ios 14.5
    apple macos big sur 11.3