Vulnerability Name:

CVE-2018-21214 (CCN-181171)

Assigned:2018-02-22
Published:2018-02-22
Updated:2020-05-04
Summary:Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, EX2700 before 1.0.1.28, R6100 before 1.0.1.20, R7500v2 before 1.0.3.24, R9000 before 1.0.2.52, WN2000RPTv3 before 1.0.1.20, WN3000RPv3 before 1.0.2.50, and WN3100RPv2 before 1.0.0.56.
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-120
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-21214

Source: XF
Type: UNKNOWN
netgear-cve201821214-bo(181171)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2017-2488
Security Advisory for Pre-Authentication Buffer Overflow on Some Routers, Gateways, and Extenders

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000055123/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2488

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:r9000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.52)
  • AND
  • cpe:/h:netgear:r9000:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:netgear:ex2700_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.28)
  • AND
  • cpe:/h:netgear:ex2700:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:netgear:r6100_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.20)
  • AND
  • cpe:/h:netgear:r6100:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:netgear:r7500_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.24)
  • AND
  • cpe:/h:netgear:r7500:v2:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:netgear:d6000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.67)
  • AND
  • cpe:/h:netgear:d6000:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:netgear:d3600_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.67)
  • AND
  • cpe:/h:netgear:d3600:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:netgear:wn2000rpt_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.20)
  • AND
  • cpe:/h:netgear:wn2000rpt:v3:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:netgear:wn3000rp_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.50)
  • AND
  • cpe:/h:netgear:wn3000rp:v3:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:netgear:wn3100rp_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.56)
  • AND
  • cpe:/h:netgear:wn3100rp:v2:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:netgear:r7500v2_firmware:1.0.3:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:d6000_firmware:1.0.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:d3600_firmware:1.0.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wn2000rptv3_firmware:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:ex2700_firmware:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wn3000rpv3_firmware:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wn3100rpv2_firmware:1.0.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:r6100_firmware:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:r9000_firmware:1.0.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear r9000 firmware *
    netgear r9000 -
    netgear ex2700 firmware *
    netgear ex2700 -
    netgear r6100 firmware *
    netgear r6100 -
    netgear r7500 firmware *
    netgear r7500 v2
    netgear d6000 firmware *
    netgear d6000 -
    netgear d3600 firmware *
    netgear d3600 -
    netgear wn2000rpt firmware *
    netgear wn2000rpt v3
    netgear wn3000rp firmware *
    netgear wn3000rp v3
    netgear wn3100rp firmware *
    netgear wn3100rp v2
    netgear r7500v2 firmware 1.0.3
    netgear d6000 firmware 1.0.0
    netgear d3600 firmware 1.0.0
    netgear wn2000rptv3 firmware 1.0.1
    netgear ex2700 firmware 1.0.1
    netgear wn3000rpv3 firmware 1.0.2
    netgear wn3100rpv2 firmware 1.0.0
    netgear r6100 firmware 1.0.1
    netgear r9000 firmware 1.0.2