Vulnerability Name:

CVE-2021-45508 (CCN-210533)

Assigned:2021-09-26
Published:2021-09-26
Updated:2022-07-12
Summary:Certain NETGEAR devices are affected by authentication bypass. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, RBK752 before 3.2.17.12, RBR750 before 3.2.17.12, RBS750 before 3.2.17.12, RBK852 before 3.2.17.12, and RBR850 before 3.2.17.12.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
9.6 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
8.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/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): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
8.3 High (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-45508

Source: XF
Type: UNKNOWN
netgear-psv20200490-sec-bypass(210533)

Source: MISC
Type: Patch, Vendor Advisory
https://kb.netgear.com/000064133/Security-Advisory-for-Authentication-Bypass-on-Some-WiFi-Systems-PSV-2020-0490

Source: CCN
Type: NETGEAR Security Advisory: PSV-2020-0490
Security Advisory for Authentication Bypass on Some WiFi Systems

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:cbr40_firmware:*:*:*:*:*:*:*:* (Version < 2.5.0.24)
  • AND
  • cpe:/h:netgear:cbr40:-:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:netgear:cbr750_firmware:*:*:*:*:*:*:*:* (Version < 4.6.3.6)
  • AND
  • cpe:/h:netgear:cbr750:-:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:netgear:rbk752_firmware:*:*:*:*:*:*:*:* (Version < 3.2.17.12)
  • AND
  • cpe:/h:netgear:rbk752:-:*:*:*:*:*:*:*

  • Configuration 4:
  • cpe:/o:netgear:rbr750_firmware:*:*:*:*:*:*:*:* (Version < 3.2.17.12)
  • AND
  • cpe:/h:netgear:rbr750:-:*:*:*:*:*:*:*

  • Configuration 5:
  • cpe:/o:netgear:rbs750_firmware:*:*:*:*:*:*:*:* (Version < 3.2.17.12)
  • AND
  • cpe:/h:netgear:rbs750:-:*:*:*:*:*:*:*

  • Configuration 6:
  • cpe:/o:netgear:rbk852_firmware:*:*:*:*:*:*:*:* (Version < 3.2.17.12)
  • AND
  • cpe:/h:netgear:rbk852:-:*:*:*:*:*:*:*

  • Configuration 7:
  • cpe:/o:netgear:rbr850_firmware:*:*:*:*:*:*:*:* (Version < 3.2.17.12)
  • AND
  • cpe:/h:netgear:rbr850:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/h:netgear:rbk752:-:*:*:*:*:*:*:*
  • OR cpe:/h:netgear:rbk852:-:*:*:*:*:*:*:*
  • OR cpe:/h:netgear:rbr850:-:*:*:*:*:*:*:*
  • OR cpe:/h:netgear:cbr40:-:*:*:*:*:*:*:*
  • OR cpe:/h:netgear:rbk852:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    netgear cbr40 firmware *
    netgear cbr40 -
    netgear cbr750 firmware *
    netgear cbr750 -
    netgear rbk752 firmware *
    netgear rbk752 -
    netgear rbr750 firmware *
    netgear rbr750 -
    netgear rbs750 firmware *
    netgear rbs750 -
    netgear rbk852 firmware *
    netgear rbk852 -
    netgear rbr850 firmware *
    netgear rbr850 -
    netgear rbk752 -
    netgear rbk852 -
    netgear rbr850 -
    netgear cbr40 -
    netgear rbk852 -