GHSA-V7GR-MQPJ-WWH3

Vulnerability from github – Published: 2024-08-09 18:21 – Updated: 2024-08-12 16:01
VLAI
Summary
CometVisu Backend for openHAB affected by SSRF/XSS
Details

The proxy endpoint of openHAB's CometVisu add-on can be accessed without authentication. This proxy-feature can be exploited as Server-Side Request Forgery (SSRF) to induce GET HTTP requests to internal-only servers, in case openHAB is exposed in a non-private network.

Furthermore, this proxy-feature can also be exploited as a Cross-Site Scripting (XSS) vulnerability, as an attacker is able to re-route a request to their server and return a page with malicious JavaScript code. Since the browser receives this data directly from the openHAB CometVisu UI, this JavaScript code will be executed with the origin of the CometVisu UI. This allows an attacker to exploit call endpoints on an openHAB server even if the openHAB server is located in a private network. (e.g. by sending an openHAB admin a link that proxies malicious JavaScript.)

This vulnerability was discovered with the help of CodeQL's Server-side request forgery query.

Impact

This issue may lead up to Remote Code Execution (RCE) when chained with other vulnerabilities (see: GHSL-2024-007).

Severity
10.0 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
7.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.2.0"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.openhab.ui.bundles:org.openhab.ui.cometvisu"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-42467"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-08-09T18:21:07Z",
    "nvd_published_at": "2024-08-12T13:38:34Z",
    "severity": "HIGH"
  },
  "details": "The [proxy endpoint](https://github.com/openhab/openhab-webui/blob/1c03c60f84388b9d7da0231df2d4ebb1e17d3fcf/bundles/org.openhab.ui.cometvisu/src/main/java/org/openhab/ui/cometvisu/internal/backend/rest/ProxyResource.java#L83) of openHAB\u0027s CometVisu add-on can be accessed without authentication. This proxy-feature can be exploited as Server-Side Request Forgery (SSRF) to induce GET HTTP requests to internal-only servers, in case openHAB is exposed in a non-private network.\n\nFurthermore, this proxy-feature can also be exploited as a Cross-Site Scripting (XSS) vulnerability, as an attacker is able to re-route a request to their server and return a page with malicious JavaScript code. Since the browser receives this data directly from the openHAB CometVisu UI, this JavaScript code will be executed with the origin of the CometVisu UI. This allows an attacker to exploit call endpoints on an openHAB server even if the openHAB server is located in a private network. (e.g. by sending an openHAB admin a link that proxies malicious JavaScript.)\n\nThis vulnerability was discovered with the help of CodeQL\u0027s [Server-side request forgery](https://codeql.github.com/codeql-query-help/java/java-ssrf/) query.\n\n## Impact\n\nThis issue may lead up to Remote Code Execution (RCE) when chained with other vulnerabilities (see: GHSL-2024-007).",
  "id": "GHSA-v7gr-mqpj-wwh3",
  "modified": "2024-08-12T16:01:01Z",
  "published": "2024-08-09T18:21:07Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openhab/openhab-webui/security/advisories/GHSA-v7gr-mqpj-wwh3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42467"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openhab/openhab-webui/commit/630e8525835c698cf58856aa43782d92b18087f2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openhab/openhab-webui"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openhab/openhab-webui/blob/1c03c60f84388b9d7da0231df2d4ebb1e17d3fcf/bundles/org.openhab.ui.cometvisu/src/main/java/org/openhab/ui/cometvisu/internal/backend/rest/ProxyResource.java#L83"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CometVisu Backend for openHAB affected by SSRF/XSS"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.