GHSA-64WP-JH9P-5CG2

Vulnerability from github – Published: 2023-01-11 22:04 – Updated: 2023-01-23 22:17
VLAI?
Summary
RSSHub SSRF vulnerability
Details

Summary

RSSHub is vulnerable to Server-Side Request Forgery (SSRF) attacks. This vulnerability allows an attacker to send arbitrary HTTP requests from the server to other servers or resources on the network.

Description

An attacker can exploit this vulnerability by sending a request to the affected routes with a malicious URL. For example, if an attacker controls the ATTACKER.HOST domain, they can send a request to affected routes with the value set to ATTACKER.HOST%2F%23. The %2F and %23 characters are URL-encoded versions of the forward-slash (/) and pound (#) characters, respectively. In this context, an attacker could use those characters to append the base URL (i.e. https://${input}.defined.host) to be modified to https://ATTACKER.HOST/#.defined.host. This will cause the server to send a request to the attacker-controlled domain, allowing the attacker to potentially gain access to sensitive information or perform further attacks on the server.

Impact

An attacker could use this vulnerability to send requests to internal or any other servers or resources on the network, potentially gain access to sensitive information that would not normally be accessible and amplifying the impact of the attack.

Reference

Fixing PR: https://github.com/DIYgod/RSSHub/pull/11588

Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "rsshub"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0-master.a66cbcf"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-22493"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-11T22:04:44Z",
    "nvd_published_at": "2023-01-13T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\nRSSHub is vulnerable to Server-Side Request Forgery (SSRF) attacks. This vulnerability allows an attacker to send arbitrary HTTP requests from the server to other servers or resources on the network.\n\n## Description\n\nAn attacker can exploit this vulnerability by sending a request to the affected routes with a malicious URL. For example, if an attacker controls the `ATTACKER.HOST` domain, they can send a request to affected routes with the value set to `ATTACKER.HOST%2F%23`.\nThe `%2F` and `%23` characters are URL-encoded versions of the forward-slash (`/`) and pound (`#`) characters, respectively. In this context, an attacker could use those characters to append the base URL (i.e. `https://${input}.defined.host`) to be modified to `https://ATTACKER.HOST/#.defined.host`. This will cause the server to send a request to the attacker-controlled domain, allowing the attacker to potentially gain access to sensitive information or perform further attacks on the server. \n\n## Impact\n\nAn attacker could use this vulnerability to send requests to internal or any other servers or resources on the network, potentially gain access to sensitive information that would not normally be accessible and amplifying the impact of the attack.\n\n## Reference\n\nFixing PR: https://github.com/DIYgod/RSSHub/pull/11588",
  "id": "GHSA-64wp-jh9p-5cg2",
  "modified": "2023-01-23T22:17:31Z",
  "published": "2023-01-11T22:04:44Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/DIYgod/RSSHub/security/advisories/GHSA-64wp-jh9p-5cg2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-22493"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DIYgod/RSSHub/pull/11588"
    },
    {
      "type": "WEB",
      "url": "https://github.com/DIYgod/RSSHub/commit/a66cbcf6eebc700bf97ab097f404f16ab415506a"
    },
    {
      "type": "WEB",
      "url": "https://advisory.dw1.io/56"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/DIYgod/RSSHub"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "RSSHub SSRF vulnerability"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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