GSD-2021-34435

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file..
Aliases
Aliases
CVE-2021-34435
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{
  "GSD": {
    "alias": "CVE-2021-34435",
    "description": "In Eclipse Theia 0.3.9 to 1.8.1, the \"mini-browser\" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file..",
    "id": "GSD-2021-34435"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-34435"
      ],
      "details": "In Eclipse Theia 0.3.9 to 1.8.1, the \"mini-browser\" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file..",
      "id": "GSD-2021-34435",
      "modified": "2023-12-13T01:23:14.470270Z",
      "schema_version": "1.4.0"
    }
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      "affects": {
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          "vendor_data": [
            {
              "product": {
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                  {
                    "product_name": "Eclipse Theia",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003e=",
                          "version_value": "0.3.9"
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                          "version_affected": "\u003c=",
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          }
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=0.3.9 \u003c=1.8.1",
          "affected_versions": "All versions starting from 0.3.9 up to 1.8.1",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-346",
            "CWE-937"
          ],
          "date": "2022-10-27",
          "description": "In Eclipse Theia to, the mini-browser extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file.",
          "fixed_versions": [
            "1.9.0"
          ],
          "identifier": "CVE-2021-34435",
          "identifiers": [
            "CVE-2021-34435"
          ],
          "not_impacted": "All versions before 0.3.9, all versions after 1.8.1",
          "package_slug": "npm/@theia/mini-browser",
          "pubdate": "2021-09-01",
          "solution": "Upgrade to version 1.9.0 or above.",
          "title": "Exposure of Resource to Wrong Sphere",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-34435",
            "https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018"
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          "uuid": "8b5f8386-cd4c-42ad-a0a1-90dd72748c58"
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                "versionEndIncluding": "1.8.1",
                "versionStartIncluding": "0.3.9",
                "vulnerable": true
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            }
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        "problemtype": {
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                  "value": "CWE-346"
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-10-27T12:49Z",
      "publishedDate": "2021-09-01T18:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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