GSD-2021-42669

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing "<?php system($_GET["cmd"]); ?>" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2021-42669",
    "description": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"\u003c?php system($_GET[\"cmd\"]); ?\u003e\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.",
    "id": "GSD-2021-42669"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-42669"
      ],
      "details": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"\u003c?php system($_GET[\"cmd\"]); ?\u003e\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id.",
      "id": "GSD-2021-42669",
      "modified": "2023-12-13T01:23:06.525110Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-42669",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
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              "vendor_name": "n/a"
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      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"\u003c?php system($_GET[\"cmd\"]); ?\u003e\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
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                "lang": "eng",
                "value": "n/a"
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      "references": {
        "reference_data": [
          {
            "name": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html",
            "refsource": "MISC",
            "url": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"
          },
          {
            "name": "https://github.com/TheHackingRabbi/CVE-2021-42669",
            "refsource": "MISC",
            "url": "https://github.com/TheHackingRabbi/CVE-2021-42669"
          },
          {
            "name": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671",
            "refsource": "MISC",
            "url": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:engineers_online_portal_project:engineers_online_portal:-:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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        "description": {
          "description_data": [
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              "value": "A file upload vulnerability exists in Sourcecodester Engineers Online Portal in PHP via dashboard_teacher.php, which allows changing the avatar through teacher_avatar.php. Once an avatar gets uploaded it is getting uploaded to the /admin/uploads/ directory, and is accessible by all users. By uploading a php webshell containing \"\u003c?php system($_GET[\"cmd\"]); ?\u003e\" the attacker can execute commands on the web server with - /admin/uploads/php-webshell?cmd=id."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-434"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html",
              "refsource": "MISC",
              "tags": [
                "Product",
                "Third Party Advisory"
              ],
              "url": "https://www.sourcecodester.com/php/13115/engineers-online-portal-php.html"
            },
            {
              "name": "https://github.com/TheHackingRabbi/CVE-2021-42669",
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              "tags": [
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              "url": "https://github.com/TheHackingRabbi/CVE-2021-42669"
            },
            {
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              "refsource": "MISC",
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              ],
              "url": "https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-42671"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 10.0,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-11-29T17:13Z",
      "publishedDate": "2021-11-05T13:15Z"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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