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.
OS Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 93%
VendorProductVersion
tp-linktl-wr840n_firmware
6_eu_0.9.1_4.16:_eu_0.9
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md
https://therealunicornsecurity.github.io/TPLink/
https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware
https://github.com/therealunicornsecurity/therealunicornsecurity.github.io/blob/master/_posts/2020-10-11-TPLink.md
https://therealunicornsecurity.github.io/TPLink/
https://www.tp-link.com/fr/support/download/tl-wr840n/v6/#Firmware