CVE-2023-27332

2024-05-0302:15:10

CWE-121

[email protected]

web.nvd.nist.gov

cve-2023-27332

tp-link archer ax21

tdpserver

buffer overflow

remote code execution

vulnerability

network-adjacent attackers

udp

zdi-can-19898

nvd

8.8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

29.0%

JSON

TP-Link Archer AX21 tdpServer Logging 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 not required to exploit this vulnerability.

The specific flaw exists within the logging functionality of the tdpServer program, which listens on UDP port 20002. 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-19898.

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"
  }
]