Vulnerability Name:

CVE-2018-21121 (CCN-180573)

Assigned:2018-09-26
Published:2018-09-26
Updated:2020-04-24
Summary:Certain NETGEAR devices are affected by authentication bypass. This affects GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.
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-287
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2018-21121

Source: XF
Type: UNKNOWN
netgear-cve201821121-sec-bypass(180573)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2018-0219
Security Advisory for Authentication Bypass on Some Switches

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000060237/Security-Advisory-for-Authentication-Bypass-on-Some-Switches-PSV-2018-0219

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:gs810emx_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.5)
  • AND
  • cpe:/h:netgear:gs810emx:-:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:netgear:xs512em_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.6)
  • AND
  • cpe:/h:netgear:xs512em:-:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:netgear:xs724em_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.6)
  • AND
  • cpe:/h:netgear:xs724em:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:netgear:gs810emx_firmware:1.0.0.5:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:xs512em_firmware:1.0.0.6:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:xs724em_firmware:1.0.0.6:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    netgear gs810emx firmware *
    netgear gs810emx -
    netgear xs512em firmware *
    netgear xs512em -
    netgear xs724em firmware *
    netgear xs724em -
    netgear gs810emx firmware 1.0.0.5
    netgear xs512em firmware 1.0.0.6
    netgear xs724em firmware 1.0.0.6