CVE-2021-4029

CVSS V2 High 8.3 CVSS V3 High 8.8
Description
A command injection vulnerability in the CGI program of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary OS commands via a LAN interface.
Overview
  • CVE ID
  • CVE-2021-4029
  • Assigner
  • security@zyxel.com.tw
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-02-24T15:15:25
  • Last Modified Date
  • 2022-03-02T15:46:01
Weakness Enumerations
CWE URL
CWE-78 http://cwe.mitre.org/data/definitions/78.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:zyxel:nbg6816_firmware:1.00\(aawb.10\)c0:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:zyxel:nbg6816:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:zyxel:nbg6817_firmware:*:*:*:*:*:*:*:* 1 OR 1.00\(abcs.11\)c0
cpe:2.3:h:zyxel:nbg6817:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 8.3
  • Severity
  • HIGH
  • Exploitability Score
  • 6.5
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-4029
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4029
History
Created Old Value New Value Data Type Notes
2022-05-10 15:47:38 Added to TrackCVE
2022-12-06 10:36:30 2022-02-24T15:15Z 2022-02-24T15:15:25 CVE Published Date updated
2022-12-06 10:36:31 2022-03-02T15:46:01 CVE Modified Date updated
2022-12-06 10:36:31 Analyzed Vulnerability Status updated