CVE-2023-1389highunder attackCWE-77

CVE-2023-1389: high-severity vulnerability in TP-Link Archer AX21 (AX1800)

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100Vexday Risk Score

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ssvc Actcvss 8.8epss 100%
from disclosure to weaponsame day
Published on NVDMar 15
1st PoCApr 26
CISA KEV+47d
Action required by CISAfederal deadline: 2023-05-22

Apply updates per vendor instructions.

In short

TP-Link Archer AX21 routers allow attackers to run commands as root through an unsanitized input field in the web interface, without needing a password. This lets attackers take complete control of the device.

Technical detail

A command injection vulnerability exists in the country parameter of the /cgi-bin/luci;stok=/locale endpoint due to insufficient input sanitization before use in popen(). An unauthenticated attacker can inject arbitrary commands via a POST request, which execute with root privileges.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

TP-Link Archer AX21 (AX1800) firmware versions before 1.1.4 Build 20230219 contained a command injection vulnerability in the country form of the /cgi-bin/luci;stok=/locale endpoint on the web management interface. Specifically, the country parameter of the write operation was not sanitized before being used in a call to popen(), allowing an unauthenticated attacker to inject commands, which would be run as root, with a simple POST request.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · TP-Link Archer AX21 (AX1800)
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