Vulnerability Name:

CVE-2018-21226 (CCN-181129)

Assigned:2018-02-21
Published:2018-02-21
Updated:2020-05-05
Summary:Certain NETGEAR devices are affected by authentication bypass. This affects JNR1010v2 before 1.1.0.48, JWNR2010v5 before 1.1.0.48, WNR1000v4 before 1.1.0.48, WNR2020 before 1.1.0.48, and WNR2050 before 1.1.0.48.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/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): 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): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.7 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: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): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:5.8 Medium (CVSS v2 Vector: AV:A/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Adjacent_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-269
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2018-21226

Source: XF
Type: UNKNOWN
netgear-cve201821226-sec-bypass(181129)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2017-0748
Security Advisory for Authentication Bypass on Some Routers

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000055110/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-PSV-2017-0748

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:jnr1010_firmware:*:*:*:*:*:*:*:* (Version < 1.1.0.48)
  • AND
  • cpe:/h:netgear:jnr1010:v2:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:netgear:jwnr2010_firmware:*:*:*:*:*:*:*:* (Version < 1.1.0.48)
  • AND
  • cpe:/h:netgear:jwnr2010:v5:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:netgear:wnr1000_firmware:*:*:*:*:*:*:*:* (Version < 1.1.0.48)
  • AND
  • cpe:/h:netgear:wnr1000:v4:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:netgear:wnr2020_firmware:*:*:*:*:*:*:*:* (Version < 1.1.0.48)
  • AND
  • cpe:/h:netgear:wnr2020:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:netgear:wnr2050_firmware:*:*:*:*:*:*:*:* (Version < 1.1.0.48)
  • AND
  • cpe:/h:netgear:wnr2050:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:netgear:jnr1010v2_firmware:1.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wnr2020_firmware:1.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:jwnr2010v5_firmware:1.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wnr1000v4_firmware:1.1.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wnr2050_firmware:1.1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear jnr1010 firmware *
    netgear jnr1010 v2
    netgear jwnr2010 firmware *
    netgear jwnr2010 v5
    netgear wnr1000 firmware *
    netgear wnr1000 v4
    netgear wnr2020 firmware *
    netgear wnr2020 -
    netgear wnr2050 firmware *
    netgear wnr2050 -
    netgear jnr1010v2 firmware 1.1.0
    netgear wnr2020 firmware 1.1.0
    netgear jwnr2010v5 firmware 1.1.0
    netgear wnr1000v4 firmware 1.1.0
    netgear wnr2050 firmware 1.1.0