CVE-2023-27333 — MEDIUM (6.8)

Vulnerability Description

TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer AX21 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of command 0x422 provided to the tmpServer service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19905.

CVSS Score

6.8

MEDIUM

CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Tp-Link	Archer Ax21 Firmware	1.1.3
Tp-Link	Archer Ax21	-

Related Weaknesses (CWE)

CWE-121

References

https://www.zerodayinitiative.com/advisories/ZDI-23-244/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-244/Third Party Advisory

FAQ

What is CVE-2023-27333?

CVE-2023-27333 is a vulnerability with a CVSS score of 6.8 (MEDIUM). TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected ...

How severe is CVE-2023-27333?

CVE-2023-27333 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-27333?

Check the references section above for vendor advisories and patch information. Affected products include: Tp-Link Archer Ax21 Firmware, Tp-Link Archer Ax21.