CVEvulnerability
CVE-2020-36178
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-01-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-78
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.
Affected configurations
• tp-link tl-wr840n firmware 6 eu 0.9.1 4.16
Related
Weakness · CWE (1)
- CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
References
- 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
- 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