Vulnerability Name:

CVE-2021-1863 (CCN-209229)

Assigned:2020-12-08
Published:2021-04-26
Updated:2021-09-16
Summary:An issue existed with authenticating the action triggered by an NFC tag. The issue was addressed with improved action authentication. This issue is fixed in iOS 14.5 and iPadOS 14.5. A person with physical access to an iOS device may be able to place phone calls to any phone number.
CVSS v3 Severity:2.4 Low (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
2.1 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/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): Low
Availibility (A): None
2.4 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
2.1 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/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): Low
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
2.1 Low (CCN 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
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-287
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2021-1863

Source: XF
Type: UNKNOWN
apple-ios-cve20211863-sec-bypass(209229)

Source: CCN
Type: Apple security document HT212317
About the security content of iOS 14.5 and iPadOS 14.5

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT212317

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.5)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 14.5)

    • Configuration CCN 1:
  • cpe:/o:apple:ios:14.4:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:14.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple ipados *
    apple iphone os *
    apple ios 14.4
    apple ipados 14.4