Vulnerability Name:

CVE-2018-21183 (CCN-181149)

Assigned:2018-02-28
Published:2018-02-28
Updated:2020-05-04
Summary:Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.94.
CVSS v3 Severity:6.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/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): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/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): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:5.2 Medium (CVSS v2 Vector: AV:A/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.7 High (CCN CVSS v2 Vector: AV:A/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-21183

Source: XF
Type: UNKNOWN
netgear-cve201821183-bo(181149)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2017-2616
Security Advisory for Post-Authentication Stack Overflow on Some Routers

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000055175/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2616

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:r7800_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.40)
  • AND
  • cpe:/h:netgear:r7800:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:netgear:r9000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.52)
  • AND
  • cpe:/h:netgear:r9000:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.92)
  • AND
  • cpe:/h:netgear:wndr3700:v4:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.94)
  • AND
  • cpe:/h:netgear:wndr4300:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:netgear:r7800_firmware:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wndr3700v4_firmware:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:wndr4300_firmware:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:r9000_firmware:1.0.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear r7800 firmware *
    netgear r7800 -
    netgear r9000 firmware *
    netgear r9000 -
    netgear wndr3700 firmware *
    netgear wndr3700 v4
    netgear wndr4300 firmware *
    netgear wndr4300 -
    netgear r7800 firmware 1.0.2
    netgear wndr3700v4 firmware 1.0.2
    netgear wndr4300 firmware 1.0.2
    netgear r9000 firmware 1.0.2