CVE-2020-36178

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
oal_ipt_addBridgeIsolationRules on TP-Link TL-WR840N 6_EU_0.9.1_4.16 devices allows OS command injection because a raw string entered from the web interface (an IP address field) is used directly for a call to the system library function (for iptables). NOTE: oal_ipt_addBridgeIsolationRules is not the only function that calls util_execSystem.
Overview
  • CVE ID
  • CVE-2020-36178
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-01-06T21:15:14
  • Last Modified Date
  • 2021-01-12T14:38:08
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:tp-link:tl-wr840n_firmware:6_eu_0.9.1_4.16:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:tp-link:tl-wr840n:-:*:*:*:*:*:*:* 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://therealunicornsecurity.github.io/TPLink/ Exploit Third Party Advisory
https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md Exploit Third Party Advisory
https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-36178
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36178
History
Created Old Value New Value Data Type Notes
2022-05-10 07:27:37 Added to TrackCVE
2022-12-05 19:27:32 2021-01-06T21:15Z 2021-01-06T21:15:14 CVE Published Date updated
2022-12-05 19:27:32 2021-01-12T14:38:08 CVE Modified Date updated
2022-12-05 19:27:32 Analyzed Vulnerability Status updated