CVE-2020-36178

Published on: 01/06/2021 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:23:30 PM UTC

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Certain versions of Tl-wr840n from Tp-link contain the following vulnerability:

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.

  • CVE-2020-36178 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as CRITICAL severity.

CVSS3 Score: 9.8 - CRITICAL

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 10 - HIGH

Access
Vector
Access
Complexity
Authentication
NETWORK LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
COMPLETE COMPLETE COMPLETE

CVE References

Description Tags Link
Téléchargement pour TL-WR840N | TP-Link France Vendor Advisory
www.tp-link.com
text/html
URL Logo MISC www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware
therealunicornsecurity.github.io/2020-10-11-TPLink.md at master · therealunicornsecurity/therealunicornsecurity.github.io · GitHub Exploit
Third Party Advisory
github.com
text/html
URL Logo MISC github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md
Reversing TL-WR840N – Unicorn Security – Breaching Unicorns Exploit
Third Party Advisory
therealunicornsecurity.github.io
text/html
URL Logo MISC therealunicornsecurity.github.io/TPLink/

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Hardware Device InfoTp-linkTl-wr840n-AllAllAll
Hardware Device InfoTp-linkTl-wr840n-AllAllAll
Operating
System
Tp-linkTl-wr840n Firmware6_eu_0.9.1_4.16AllAllAll
Operating
System
Tp-linkTl-wr840n Firmware6_eu_0.9.1_4.16AllAllAll
  • cpe:2.3:h:tp-link:tl-wr840n:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:tp-link:tl-wr840n:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:tp-link:tl-wr840n_firmware:6_eu_0.9.1_4.16:*:*:*:*:*:*:*:
  • cpe:2.3:o:tp-link:tl-wr840n_firmware:6_eu_0.9.1_4.16:*:*:*:*:*:*:*:
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