CVE-2021-46319

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicious users can use this vulnerability to use "\ " or backticks to bypass the shell metacharacters in the ssid0 or ssid1 parameters to execute arbitrary commands.This vulnerability is due to the fact that CVE-2019-17509 is not fully patched and can be bypassed by using line breaks or backticks on its basis.
Overview
  • CVE ID
  • CVE-2021-46319
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-02-17T22:15:07
  • Last Modified Date
  • 2022-02-25T18:50:15
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:dlink:dir-846_firmware:100a43:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:dlink:dir-846:a1:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:dlink:dir-846_firmware:100a53dla:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:dlink:dir-846:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.dlink.com/en/security-bulletin/ Vendor Advisory
https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-46319
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46319
History
Created Old Value New Value Data Type Notes
2022-05-10 06:31:28 Added to TrackCVE
2022-12-06 10:04:33 2022-02-17T22:15Z 2022-02-17T22:15:07 CVE Published Date updated
2022-12-06 10:04:33 2022-02-25T18:50:15 CVE Modified Date updated
2022-12-06 10:04:33 Analyzed Vulnerability Status updated