CVE-2021-20122

CVSS V2 High 9 CVSS V3 High 7.2
Description
The Telus Wi-Fi Hub (PRV65B444A-S-TS) with firmware version 3.00.20 is affected by an authenticated command injection vulnerability in multiple parameters passed to tr69_cmd.cgi. A remote attacker connected to the router's LAN and authenticated with a super user account, or using a bypass authentication vulnerability like CVE-2021-20090 could leverage this issue to run commands or gain a shell as root on the target device.
Overview
  • CVE ID
  • CVE-2021-20122
  • Assigner
  • vulnreport@tenable.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-10-11T17:15:07
  • Last Modified Date
  • 2022-06-28T14:11:45
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:telus:prv65b444a-s-ts_firmware:3.00.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:telus:prv65b444a-s-ts:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 9
  • Severity
  • HIGH
  • Exploitability Score
  • 8
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.2
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.2
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.tenable.com/security/research/tra-2021-41 Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20122
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20122
History
Created Old Value New Value Data Type Notes
2022-05-10 06:51:17 Added to TrackCVE
2022-12-05 12:11:22 2021-10-11T17:15Z 2021-10-11T17:15:07 CVE Published Date updated
2022-12-05 12:11:22 2022-06-28T14:11:45 CVE Modified Date updated
2022-12-05 12:11:22 Analyzed Vulnerability Status updated