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CVE-2020-36178 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md | CVE | ExploitThird Party Advisory |
| https://therealunicornsecurity.github.io/TPLink/ | CVE | ExploitThird Party Advisory |
| https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware | CVE | Vendor Advisory |
| https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md | [email protected] | ExploitThird Party Advisory |
| https://therealunicornsecurity.github.io/TPLink/ | [email protected] | ExploitThird Party Advisory |
| https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| tp-link tl-wr840n firmware | 6_eu_0.9.1_4.16 |
CPE
Remediation
| |
| tp-link tl-wr840n | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Jan 12, 2021 | Initial Analysis | [email protected] |
| Jan 6, 2021 | CVE Modified | [email protected] |