Vulnerability Name:

CVE-2018-21156 (CCN-180880)

Assigned:2018-06-21
Published:2018-06-21
Updated:2020-05-05
Summary:Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.38, D6400 before 1.0.0.74, D7000v2 before 1.0.0.74, D8500 before 1.0.3.39, DGN2200v4 before 1.0.0.102, DGN2200Bv4 before 1.0.0.102, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.22, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.38, EX6200 before 1.0.3.86, EX7000 before 1.0.0.64, R6250 before 1.0.4.20, R6300v2 before 1.0.4.22, R6400 before 1.0.1.32, R6400v2 before 1.0.2.52, R6700 before 1.0.1.44, R6900 before 1.0.1.44, R6900P before 1.3.0.18, R7000 before 1.0.9.28, R7000P before 1.3.0.18, R7300DST before 1.0.0.62, R7900 before 1.0.2.10, R7900P before 1.3.0.10, R8000 before 1.0.4.12, R8000P before 1.3.0.10, R8300 before 1.0.2.116, R8500 before 1.0.2.116, WN2500RPv2 before 1.0.1.52, WNDR3400v3 before 1.0.1.18, and WNR3500Lv2 before 1.2.0.46.
CVSS v3 Severity:7.2 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): 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-120
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-21156

Source: XF
Type: UNKNOWN
netgear-cve201821156-bo(180880)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2017-2460
Security Advisory for Post-Authentication Buffer Overflow on Some Gateways, Routers, and Extenders

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000059474/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Gateways-Routers-and-Extenders-PSV-2017-2460

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:d6220_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.38)
  • AND
  • cpe:/h:netgear:d6220:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:netgear:d6400_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.74)
  • AND
  • cpe:/h:netgear:d6400:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:netgear:d7000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.74)
  • AND
  • cpe:/h:netgear:d7000:v2:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:netgear:d8500_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.39)
  • AND
  • cpe:/h:netgear:d8500:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.102)
  • AND
  • cpe:/h:netgear:dgn2200:v4:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:netgear:dgn2200b_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.102)
  • AND
  • cpe:/h:netgear:dgn2200b:v4:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:netgear:ex3700_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.70)
  • AND
  • cpe:/h:netgear:ex3700:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:netgear:ex3800_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.70)
  • AND
  • cpe:/h:netgear:ex3800:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:netgear:ex6000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.30)
  • AND
  • cpe:/h:netgear:ex6000:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:netgear:ex6100_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.22)
  • AND
  • cpe:/h:netgear:ex6100:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:netgear:ex6120_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.40)
  • AND
  • cpe:/h:netgear:ex6120:-:*:*:*:*:*:*:*

    • Configuration 12:
  • cpe:/o:netgear:ex6130_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.22)
  • AND
  • cpe:/h:netgear:ex6130:-:*:*:*:*:*:*:*

    • Configuration 13:
  • cpe:/o:netgear:ex6150_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.38)
  • AND
  • cpe:/h:netgear:ex6150:-:*:*:*:*:*:*:*

    • Configuration 14:
  • cpe:/o:netgear:ex6200_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.86)
  • AND
  • cpe:/h:netgear:ex6200:-:*:*:*:*:*:*:*

    • Configuration 15:
  • cpe:/o:netgear:ex7000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.64)
  • AND
  • cpe:/h:netgear:ex7000:-:*:*:*:*:*:*:*

    • Configuration 16:
  • cpe:/o:netgear:r6250_firmware:*:*:*:*:*:*:*:* (Version < 1.0.4.20)
  • AND
  • cpe:/h:netgear:r6250:-:*:*:*:*:*:*:*

    • Configuration 17:
  • cpe:/o:netgear:r6300_firmware:*:*:*:*:*:*:*:* (Version < 1.0.4.22)
  • AND
  • cpe:/h:netgear:r6300:v2:*:*:*:*:*:*:*

    • Configuration 18:
  • cpe:/o:netgear:r6400_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.32)
  • AND
  • cpe:/h:netgear:r6400:-:*:*:*:*:*:*:*

    • Configuration 19:
  • cpe:/o:netgear:r6400_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.52)
  • AND
  • cpe:/h:netgear:r6400:v2:*:*:*:*:*:*:*

    • Configuration 20:
  • cpe:/o:netgear:r6700_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.44)
  • AND
  • cpe:/h:netgear:r6700:-:*:*:*:*:*:*:*

    • Configuration 21:
  • cpe:/o:netgear:r6900_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.44)
  • AND
  • cpe:/h:netgear:r6900:-:*:*:*:*:*:*:*

    • Configuration 22:
  • cpe:/o:netgear:r6900p_firmware:*:*:*:*:*:*:*:* (Version < 1.3.0.18)
  • AND
  • cpe:/h:netgear:r6900p:-:*:*:*:*:*:*:*

    • Configuration 23:
  • cpe:/o:netgear:r7000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.9.28)
  • AND
  • cpe:/h:netgear:r7000:-:*:*:*:*:*:*:*

    • Configuration 24:
  • cpe:/o:netgear:r7000p_firmware:*:*:*:*:*:*:*:* (Version < 1.3.0.18)
  • AND
  • cpe:/h:netgear:r7000p:-:*:*:*:*:*:*:*

    • Configuration 25:
  • cpe:/o:netgear:r7300dst_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.62)
  • AND
  • cpe:/h:netgear:r7300dst:-:*:*:*:*:*:*:*

    • Configuration 26:
  • cpe:/o:netgear:r7900_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.10)
  • AND
  • cpe:/h:netgear:r7900:-:*:*:*:*:*:*:*

    • Configuration 27:
  • cpe:/o:netgear:r7900p_firmware:*:*:*:*:*:*:*:* (Version < 1.3.0.10)
  • AND
  • cpe:/h:netgear:r7900p:-:*:*:*:*:*:*:*

    • Configuration 28:
  • cpe:/o:netgear:r8000_firmware:*:*:*:*:*:*:*:* (Version < 1.0.4.12)
  • AND
  • cpe:/h:netgear:r8000:-:*:*:*:*:*:*:*

    • Configuration 29:
  • cpe:/o:netgear:r8000p_firmware:*:*:*:*:*:*:*:* (Version < 1.3.0.10)
  • AND
  • cpe:/h:netgear:r8000p:-:*:*:*:*:*:*:*

    • Configuration 30:
  • cpe:/o:netgear:r8300_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.116)
  • AND
  • cpe:/h:netgear:r8300:-:*:*:*:*:*:*:*

    • Configuration 31:
  • cpe:/o:netgear:r8500_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.116)
  • AND
  • cpe:/h:netgear:r8500:-:*:*:*:*:*:*:*

    • Configuration 32:
  • cpe:/o:netgear:wn2500rp_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.52)
  • AND
  • cpe:/h:netgear:wn2500rp:v2:*:*:*:*:*:*:*

    • Configuration 33:
  • cpe:/o:netgear:wndr3400_firmware:*:*:*:*:*:*:*:* (Version < 1.0.1.18)
  • AND
  • cpe:/h:netgear:wndr3400:v3:*:*:*:*:*:*:*

    • Configuration 34:
  • cpe:/o:netgear:wnr3500l_firmware:*:*:*:*:*:*:*:* (Version < 1.2.0.46)
  • AND
  • cpe:/h:netgear:wnr3500l:v2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear d6220 firmware *
    netgear d6220 -
    netgear d6400 firmware *
    netgear d6400 -
    netgear d7000 firmware *
    netgear d7000 v2
    netgear d8500 firmware *
    netgear d8500 -
    netgear dgn2200 firmware *
    netgear dgn2200 v4
    netgear dgn2200b firmware *
    netgear dgn2200b v4
    netgear ex3700 firmware *
    netgear ex3700 -
    netgear ex3800 firmware *
    netgear ex3800 -
    netgear ex6000 firmware *
    netgear ex6000 -
    netgear ex6100 firmware *
    netgear ex6100 -
    netgear ex6120 firmware *
    netgear ex6120 -
    netgear ex6130 firmware *
    netgear ex6130 -
    netgear ex6150 firmware *
    netgear ex6150 -
    netgear ex6200 firmware *
    netgear ex6200 -
    netgear ex7000 firmware *
    netgear ex7000 -
    netgear r6250 firmware *
    netgear r6250 -
    netgear r6300 firmware *
    netgear r6300 v2
    netgear r6400 firmware *
    netgear r6400 -
    netgear r6400 firmware *
    netgear r6400 v2
    netgear r6700 firmware *
    netgear r6700 -
    netgear r6900 firmware *
    netgear r6900 -
    netgear r6900p firmware *
    netgear r6900p -
    netgear r7000 firmware *
    netgear r7000 -
    netgear r7000p firmware *
    netgear r7000p -
    netgear r7300dst firmware *
    netgear r7300dst -
    netgear r7900 firmware *
    netgear r7900 -
    netgear r7900p firmware *
    netgear r7900p -
    netgear r8000 firmware *
    netgear r8000 -
    netgear r8000p firmware *
    netgear r8000p -
    netgear r8300 firmware *
    netgear r8300 -
    netgear r8500 firmware *
    netgear r8500 -
    netgear wn2500rp firmware *
    netgear wn2500rp v2
    netgear wndr3400 firmware *
    netgear wndr3400 v3
    netgear wnr3500l firmware *
    netgear wnr3500l v2