Vulnerability Name:

CVE-2018-21184 (CCN-181142)

Assigned:2018-02-28
Published:2018-02-28
Updated:2020-05-05
Summary:Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, D7800 before 1.0.1.28, R7500v2 before 1.0.3.24, R7800 before 1.0.2.40, and R9000 before 1.0.3.6.
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-2018-21184

Source: XF
Type: UNKNOWN
netgear-cve201821184-bo(181142)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2017-2615
Security Advisory for Post-Authentication Stack Overflow on Some Routers and Gateways

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000055174/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2615

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:d6100_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.57)
  • AND
  • cpe:/h:netgear:d6100:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:netgear:d7800_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.28)
  • AND
  • cpe:/h:netgear:d7800:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:netgear:r7500_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.24)
  • AND
  • cpe:/h:netgear:r7500:v2:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:netgear:r7800_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.40)
  • AND
  • cpe:/h:netgear:r7800:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:netgear:r9000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.6)
  • AND
  • cpe:/h:netgear:r9000:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:netgear:r7800_firmware:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:r7500v2_firmware:1.0.3:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:d7800_firmware:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:d6100_firmware:1.0.0:*:*:*:*:*:*:*
  • OR cpe:/o:netgear:r9000_firmware:1.0.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear d6100 firmware *
    netgear d6100 -
    netgear d7800 firmware *
    netgear d7800 -
    netgear r7500 firmware *
    netgear r7500 v2
    netgear r7800 firmware *
    netgear r7800 -
    netgear r9000 firmware *
    netgear r9000 -
    netgear r7800 firmware 1.0.2
    netgear r7500v2 firmware 1.0.3
    netgear d7800 firmware 1.0.1
    netgear d6100 firmware 1.0.0
    netgear r9000 firmware 1.0.3