CVE-2023-1389
TP-Link Archer AX-21 Command Injection Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 22 May 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 100.00% probability · 100th percentile
- CISA KEV
- Listed 1 May 2023 · due 22 May 2023
- Weakness
- CWE-77
- Affected
- tp-link/archer ax21 firmware
- Source
- vulnreport@tenable.com
CISA notes
Apply updates per vendor instructions. https://www.tp-link.com/us/support/download/archer-ax21/v3/#Firmware; https://nvd.nist.gov/vuln/detail/CVE-2023-1389
References
- http://packetstormsecurity.com/files/174131/TP-Link-Archer-AX21-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://www.tenable.com/security/research/tra-2023-11Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/174131/TP-Link-Archer-AX21-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://www.tenable.com/security/research/tra-2023-11Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-1389US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.