CVE-2023-27333

2024-05-0302:15:10

CWE-121

[email protected]

web.nvd.nist.gov

tp-link

archer ax21

stack-based buffer overflow

remote code execution

authentication required

zdi-can-19905

nvd

6.8 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

29.0%

JSON

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.

Affected configurations

Vulners

Node

tp-linkarcher_ax21Range≤47.0.0

CNA Affected

[
  {
    "vendor": "TP-Link",
    "product": "Archer AX21",
    "versions": [
      {
        "version": "R.47.0.0 AutoCAD 2021 & R.47.0.0 AutoCAD LT 2021",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]