CVE-2020-36178 - Vulnerability Details - OpenCVE

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.

Published: 2021-01-06

Score: 9.8 Critical

EPSS: 9.7% Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

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:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.09701.

Key SSVC decision points have not yet been added.

References

Link	Providers
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

History

No history.

Subscriptions

Tp-link Tl-wr840n Tl-wr840n Firmware

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-01-06T20:57:57.000Z

Updated: 2024-08-04T17:23:09.407Z

Reserved: 2021-01-06T00:00:00.000Z

Link: CVE-2020-36178

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-01-06T21:15:14.317

Modified: 2026-06-17T03:14:54.610

Link: CVE-2020-36178

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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