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vulnrichmentZdiVULNRICHMENT:CVE-2023-27361
HistoryMay 03, 2024 - 1:56 a.m.

CVE-2023-27361 NETGEAR RAX30 rex_cgi JSON Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

2024-05-0301:56:12
CWE-121
zdi
github.com
4
netgear rax30
rex_cgi
buffer overflow
remote code execution
authentication
json parsing
vulnerability
zdi-can-19355

CVSS3

6.8

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

AI Score

7.8

Confidence

High

SSVC

Exploitation

none

Automatable

no

Technical Impact

total

NETGEAR RAX30 rex_cgi JSON Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Authentication is required to exploit this vulnerability.

The specific flaw exists within the handling of JSON data. 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-19355.

CNA Affected

[
  {
    "vendor": "NETGEAR",
    "product": "RAX30",
    "versions": [
      {
        "status": "affected",
        "version": "1.0.6.74_1"
      }
    ],
    "defaultStatus": "unknown"
  }
]

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:o:netgear:rax30_firmware:*:*:*:*:*:*:*:*"
    ],
    "vendor": "netgear",
    "product": "rax30_firmware",
    "versions": [
      {
        "status": "affected",
        "version": "1.0.6.74",
        "lessThan": "1.0.9.92",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]

CVSS3

6.8

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

AI Score

7.8

Confidence

High

SSVC

Exploitation

none

Automatable

no

Technical Impact

total

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