CVE-2020-36178

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-36178
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.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md Exploit Third Party Advisory
https://therealunicornsecurity.github.io/TPLink/ Exploit Third Party Advisory
https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tp-link:tl-wr840n_firmware:6_eu_0.9.1_4.16:*:*:*:*:*:*:*
cpe:2.3:h:tp-link:tl-wr840n:-:*:*:*:*:*:*:*
History

12 Jan 2021, 14:38

Type Values Removed Values Added
CWE CWE-78
CVSS v2 : unknown
v3 : unknown 		v2 : 10.0
v3 : 9.8
CPE cpe:2.3:o:tp-link:tl-wr840n_firmware:6_eu_0.9.1_4.16:*:*:*:*:*:*:*
cpe:2.3:h:tp-link:tl-wr840n:-:*:*:*:*:*:*:*
References (MISC) https://therealunicornsecurity.github.io/TPLink/ - (MISC) https://therealunicornsecurity.github.io/TPLink/ - Exploit, Third Party Advisory
References (MISC) https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md - (MISC) https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md - Exploit, Third Party Advisory
References (MISC) https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware - (MISC) https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware - Vendor Advisory

06 Jan 2021, 23:15

Type Values Removed Values Added
Summary 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). 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.

06 Jan 2021, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-01-06 21:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-36178

Mitre link : CVE-2020-36178

CVE.ORG link : CVE-2020-36178

JSON object : View

Products Affected

tp-link

  • tl-wr840n_firmware
  • tl-wr840n
CWE
CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')