Vulnerability Name:

CVE-2018-21116 (CCN-180578)

Assigned:2018-09-26
Published:2018-09-26
Updated:2020-04-23
Summary:NETGEAR XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated attackers.
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-noinfo
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-21116

Source: XF
Type: UNKNOWN
netgear-cve201821116-code-exec(180578)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2018-0312
Security Advisory for Pre-authentication and Post-authentication Remote Code Execution on XR500

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000060242/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-XR500-PSV-2018-0312

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:xr500_firmware:*:*:*:*:*:*:*:* (Version < 2.3.2.32)
  • AND
  • cpe:/h:netgear:xr500:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:netgear:xr500_firmware:2.3.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear xr500 firmware *
    netgear xr500 -
    netgear xr500 firmware 2.3.2