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Rewterz Threat Advisory – Multiple TP-Link Archer AX21 routers Vulnerabilities

Severity

High

Analysis Summary

CVE-2023-27333 CVSS:8.8

TP-Link Archer AX21 routers are vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the command 0x422 provided to the tmpServer service. By sending a specially crafted request, a remote attacker could overflow a buffer and execute arbitrary code in the context of root.

CVE-2023-27332 CVSS:8.8

TP-Link Archer AX21 routers are vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the logging functionality of the tdpServer program. By sending a specially crafted request, a remote attacker could overflow a buffer and execute arbitrary code in the context of root.

Impact

  • Buffer Overflow

Indicators Of Compromise

CVE

  • CVE-2023-27333
  • CVE-2023-27332

Affected Vendors

TP-Link

Affected Products

  • TP-Link Archer AX21 3.6_1.1.3 Build 20221125

Remediation

Upgrade to the latest version of Archer AX21, available from the TP-Link Website. 

TP-Link Website

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