CVE-2023-7080

2023-12-2912:15:47

CWE-269

[email protected]

web.nvd.nist.gov

v8 inspector

wrangler

arbitrary code execution

sandbox

debugging

cve-2023-7080

ssrf vulnerability

cve-2023-7078

8.5 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.0%

JSON

The V8 inspector intentionally allows arbitrary code execution within the Workers sandbox for debugging. wrangler dev would previously start an inspector server listening on all network interfaces. This would allow an attacker on the local network to connect to the inspector and run arbitrary code. Additionally, the inspector server did not validate Origin/Host headers, granting an attacker that can trick any user on the local network into opening a malicious website the ability to run code. If wrangler dev --remote was being used, an attacker could access production resources if they were bound to the worker.

This issue was fixed in [email protected] and [email protected]. Whilst wrangler dev’s inspector server listens on local interfaces by default as of [email protected], an SSRF vulnerability in miniflare https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-fwvg-2739-22v7 (CVE-2023-7078) allowed access from the local network until [email protected]. [email protected] and [email protected] introduced validation for the Origin/Host headers.

Affected configurations

NVD

Node

cloudflarewranglerRange2.0.0–2.20.2node.js

cloudflarewranglerRange3.0.0–3.19.0node.js

CPENameOperatorVersion
cloudflare:wranglercloudflare wranglerlt2.20.2
cloudflare:wranglercloudflare wranglerlt3.19.0

CPE	Name	Operator	Version
cloudflare:wrangler	cloudflare wrangler	lt	2.20.2
cloudflare:wrangler	cloudflare wrangler	lt	3.19.0

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "packageName": "wrangler",
    "platforms": [
      "Windows",
      "MacOS",
      "Linux"
    ],
    "product": "wrangler",
    "repo": "https://github.com/cloudflare/workers-sdk",
    "vendor": "Cloudflare",
    "versions": [
      {
        "changes": [
          {
            "at": "3.19.0",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "3.0.0",
        "status": "affected",
        "version": "0",
        "versionType": "patch"
      },
      {
        "changes": [
          {
            "at": "3.19.0",
            "status": "unaffected"
          }
        ],
        "lessThan": "3.19.0",
        "status": "affected",
        "version": "0",
        "versionType": "patch"
      },
      {
        "changes": [
          {
            "at": "2.20.2",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "2.0.0",
        "status": "affected",
        "version": "0",
        "versionType": "patch"
      },
      {
        "changes": [
          {
            "at": "2.20.2",
            "status": "unaffected"
          }
        ],
        "lessThan": "2.20.2",
        "status": "affected",
        "version": "0",
        "versionType": "patch"
      }
    ]
  }
]