Vulnerability Name:

CVE-2020-26555 (CCN-202270)

Assigned:2020-10-04
Published:2021-05-24
Updated:2022-10-07
Summary:Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN.
CVSS v3 Severity:5.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
4.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
4.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)
3.7 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.8 Medium (CVSS v2 Vector: AV:A/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
3.2 Low (CCN CVSS v2 Vector: AV:A/AC:H/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-863
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-26555

Source: CCN
Type: US-CERT VU#799380
Devices supporting Bluetooth Core and Mesh Specifications are vulnerable to impersonation attacks and AuthValue disclosure

Source: XF
Type: UNKNOWN
bluetooth-cve202026555-sec-bypass(202270)

Source: CCN
Type: GitHub Web site
BIAS: Bluetooth Impersonation AttackS

Source: MISC
Type: Third Party Advisory, US Government Resource
https://kb.cert.org/vuls/id/799380

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-a35b44fd9f

Source: MISC
Type: Vendor Advisory
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/

Source: CCN
Type: Bluetooth Web site
Bluetooth Core and Mesh Specifications

Source: CONFIRM
Type: Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:* (Version >= 1.1b and <= 5.2)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:intel:ax210_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ax210:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:intel:ax201_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ax201:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:intel:ax200_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ax200:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:intel:ac_9560_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_9560:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:intel:ac_9462_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_9462:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:intel:ac_9461_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_9461:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:intel:ac_9260_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_9260:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:intel:ac_8265_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_8265:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:intel:ac_8260_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_8260:-:*:*:*:*:*:*:*

    • Configuration 12:
  • cpe:/o:intel:ac_3168_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_3168:-:*:*:*:*:*:*:*

    • Configuration 13:
  • cpe:/o:intel:ac_7265_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_7265:-:*:*:*:*:*:*:*

    • Configuration 14:
  • cpe:/o:intel:ac_3165_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:ac_3165:-:*:*:*:*:*:*:*

    • Configuration 15:
  • cpe:/o:intel:killer_wi-fi_6e_ax1675_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:killer_wi-fi_6e_ax1675:-:*:*:*:*:*:*:*

    • Configuration 16:
  • cpe:/o:intel:killer_wi-fi_6_ax1650_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:killer_wi-fi_6_ax1650:-:*:*:*:*:*:*:*

    • Configuration 17:
  • cpe:/o:intel:killer_ac_1550_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:intel:killer_ac_1550:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    bluetooth bluetooth core specification *
    fedoraproject fedora 34
    intel ax210 firmware -
    intel ax210 -
    intel ax201 firmware -
    intel ax201 -
    intel ax200 firmware -
    intel ax200 -
    intel ac 9560 firmware -
    intel ac 9560 -
    intel ac 9462 firmware -
    intel ac 9462 -
    intel ac 9461 firmware -
    intel ac 9461 -
    intel ac 9260 firmware -
    intel ac 9260 -
    intel ac 8265 firmware -
    intel ac 8265 -
    intel ac 8260 firmware -
    intel ac 8260 -
    intel ac 3168 firmware -
    intel ac 3168 -
    intel ac 7265 firmware -
    intel ac 7265 -
    intel ac 3165 firmware -
    intel ac 3165 -
    intel killer wi-fi 6e ax1675 firmware -
    intel killer wi-fi 6e ax1675 -
    intel killer wi-fi 6 ax1650 firmware -
    intel killer wi-fi 6 ax1650 -
    intel killer ac 1550 firmware -
    intel killer ac 1550 -