Vulnerability Name:

CVE-2021-45623 (CCN-215774)

Assigned:2021-12-20
Published:2021-12-20
Updated:2022-01-05
Summary:Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R7800 before 1.0.2.74, R9000 before 1.0.5.2, and XR500 before 2.3.2.66.
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
8.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L)
7.2 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L/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): High
Integrity (I): High
Availibility (A): Low
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
8.0 High (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:C/I:C/A:P)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Partial
Vulnerability Type:CWE-77
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-45623

Source: XF
Type: UNKNOWN
netgear-psv20190203-cmd-exec(215774)

Source: MISC
Type: Patch, Vendor Advisory
https://kb.netgear.com/000064449/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-PSV-2019-0203

Source: CCN
Type: NETGEAR Security Advisory: PSV-2019-0203
Security Advisory for Pre-Authentication Command Injection on Some Routers

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:r7800_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.74)
  • AND
  • cpe:/h:netgear:r7800:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:netgear:r9000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.5.2)
  • AND
  • cpe:/h:netgear:r9000:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:netgear:xr500_firmware:*:*:*:*:*:*:*:* (Version < 2.3.2.66)
  • AND
  • cpe:/h:netgear:xr500:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:netgear:r7800_firmware:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:xr500_firmware:2.3.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear r7800 firmware *
    netgear r7800 -
    netgear r9000 firmware *
    netgear r9000 -
    netgear xr500 firmware *
    netgear xr500 -
    netgear r7800 firmware 1.0.2
    netgear xr500 firmware 2.3.2