CWE-434
AllowedUnrestricted Upload of File with Dangerous Type
Abstraction: Base · Status: Draft
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
5969 vulnerabilities reference this CWE, most recent first.
GHSA-3636-HX62-PV26
Vulnerability from github – Published: 2024-10-02 21:30 – Updated: 2024-10-02 22:35Zenario 9.7.61188 allows authenticated admin users to upload PDF files containing malicious code into the target system. If the PDF file is accessed through the website, it can trigger a Cross Site Scripting (XSS) attack.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "tribalsystems/zenario"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.7.61188"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-45960"
],
"database_specific": {
"cwe_ids": [
"CWE-434",
"CWE-79"
],
"github_reviewed": true,
"github_reviewed_at": "2024-10-02T22:35:05Z",
"nvd_published_at": "2024-10-02T20:15:11Z",
"severity": "LOW"
},
"details": "Zenario 9.7.61188 allows authenticated admin users to upload PDF files containing malicious code into the target system. If the PDF file is accessed through the website, it can trigger a Cross Site Scripting (XSS) attack.",
"id": "GHSA-3636-hx62-pv26",
"modified": "2024-10-02T22:35:05Z",
"published": "2024-10-02T21:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45960"
},
{
"type": "PACKAGE",
"url": "https://github.com/TribalSystems/Zenario"
},
{
"type": "WEB",
"url": "https://grimthereaperteam.medium.com/zenario-9-7-9-7-61188-malicious-file-upload-xss-in-pdf-eb11729fe059"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "Zenario allows authenticated admin users to upload PDF files containing malicious code"
}
GHSA-364W-9G92-3GRQ
Vulnerability from github – Published: 2021-11-16 23:40 – Updated: 2021-11-17 22:04Withdrawn
This advisory has been withdrawn after the maintainers of Laravel noted this issue is not a security vulnerability with Laravel itself, but rather a userland issue.
Original CVE based description
Laravel Framework through 8.70.2 does not sufficiently block the upload of executable PHP content because Illuminate/Validation/Concerns/ValidatesAttributes.php lacks a check for .phar files, which are handled as application/x-httpd-php on systems based on Debian. In some use cases, this may be related to file-type validation for image upload (e.g., differences between getClientOriginalExtension and other approaches).
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "laravel/framework"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.70.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-43617"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2021-11-15T22:20:46Z",
"nvd_published_at": "2021-11-14T16:15:00Z",
"severity": "MODERATE"
},
"details": "# Withdrawn\n\nThis advisory has been withdrawn after the maintainers of Laravel noted this issue is not a security vulnerability with Laravel itself, but rather a userland issue.\n\n## Original CVE based description\n\nLaravel Framework through 8.70.2 does not sufficiently block the upload of executable PHP content because Illuminate/Validation/Concerns/ValidatesAttributes.php lacks a check for .phar files, which are handled as application/x-httpd-php on systems based on Debian. In some use cases, this may be related to file-type validation for image upload (e.g., differences between getClientOriginalExtension and other approaches).",
"id": "GHSA-364w-9g92-3grq",
"modified": "2021-11-17T22:04:33Z",
"published": "2021-11-16T23:40:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43617"
},
{
"type": "PACKAGE",
"url": "https://github.com/laravel/framework"
},
{
"type": "WEB",
"url": "https://github.com/laravel/framework/blob/2049de73aa099a113a287587df4cc522c90961f5/src/Illuminate/Validation/Concerns/ValidatesAttributes.php#L1130-L1132"
},
{
"type": "WEB",
"url": "https://github.com/laravel/framework/blob/2049de73aa099a113a287587df4cc522c90961f5/src/Illuminate/Validation/Concerns/ValidatesAttributes.php#L1331-L1333"
},
{
"type": "WEB",
"url": "https://hosein-vita.medium.com/laravel-8-x-image-upload-bypass-zero-day-852bd806019b"
},
{
"type": "WEB",
"url": "https://salsa.debian.org/php-team/php/-/blob/dc253886b5b2e9bc8d9e36db787abb083a667fd8/debian/php-cgi.conf#L5-6"
},
{
"type": "WEB",
"url": "https://salsa.debian.org/php-team/php/-/commit/dc253886b5b2e9bc8d9e36db787abb083a667fd8"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Withdrawn: Laravel Framework does not sufficiently block the upload of executable PHP content.",
"withdrawn": "2021-11-17T15:41:54Z"
}
GHSA-367Q-63CF-925J
Vulnerability from github – Published: 2023-04-10 15:30 – Updated: 2023-04-14 18:30An issue was discovered in Progress Sitefinity 13.3 before 13.3.7647, 14.0 before 14.0.7736, 14.1 before 14.1.7826, 14.2 before 14.2.7930, and 14.3 before 14.3.8025. There is potentially dangerous file upload through the SharePoint connector.
{
"affected": [],
"aliases": [
"CVE-2023-29375"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-10T15:15:00Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered in Progress Sitefinity 13.3 before 13.3.7647, 14.0 before 14.0.7736, 14.1 before 14.1.7826, 14.2 before 14.2.7930, and 14.3 before 14.3.8025. There is potentially dangerous file upload through the SharePoint connector.",
"id": "GHSA-367q-63cf-925j",
"modified": "2023-04-14T18:30:18Z",
"published": "2023-04-10T15:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-29375"
},
{
"type": "WEB",
"url": "https://community.progress.com/s/article/Sitefinity-Security-Advisory-for-Addressing-Security-Vulnerabilities-April-2023"
},
{
"type": "WEB",
"url": "https://www.progress.com/sitefinity-cms"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3693-57G2-4J5Q
Vulnerability from github – Published: 2024-08-14 09:30 – Updated: 2024-08-14 09:30The Slider and Carousel slider by Depicter plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the uploadFile function in all versions up to, and including, 3.1.1. This makes it possible for authenticated attackers, with contributor access or higher, to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2024-4389"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-14T09:15:14Z",
"severity": "HIGH"
},
"details": "The Slider and Carousel slider by Depicter plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the uploadFile function in all versions up to, and including, 3.1.1. This makes it possible for authenticated attackers, with contributor access or higher, to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-3693-57g2-4j5q",
"modified": "2024-08-14T09:30:47Z",
"published": "2024-08-14T09:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4389"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/depicter/trunk/app/src/WordPress/FileUploaderService.php#L28"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3108589/depicter/trunk/app/src/WordPress/FileUploaderService.php"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/81f025da-c28c-4a80-8b4f-27dae07b2b04?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-36MQ-J57W-RH2G
Vulnerability from github – Published: 2024-01-20 03:30 – Updated: 2025-06-16 21:31An arbitrary file upload vulnerability in the nccloud.web.arcp.taskmonitor.action.ArcpUploadAction.doAction() method of YonBIP v3_23.05 allows attackers to execute arbitrary code via uploading a crafted file.
{
"affected": [],
"aliases": [
"CVE-2023-51928"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-20T01:15:08Z",
"severity": "CRITICAL"
},
"details": "An arbitrary file upload vulnerability in the nccloud.web.arcp.taskmonitor.action.ArcpUploadAction.doAction() method of YonBIP v3_23.05 allows attackers to execute arbitrary code via uploading a crafted file.",
"id": "GHSA-36mq-j57w-rh2g",
"modified": "2025-06-16T21:31:19Z",
"published": "2024-01-20T03:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51928"
},
{
"type": "WEB",
"url": "https://github.com/cxcxcxcxcxcxcxc/cxcxcxcxcxcxcxc/blob/main/cxcxcxcxcxc/about/51928.txt"
},
{
"type": "WEB",
"url": "https://www.yonyou.com"
},
{
"type": "WEB",
"url": "http://yonbip.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-36P2-CFMM-WP8W
Vulnerability from github – Published: 2026-01-15 15:31 – Updated: 2026-01-15 15:31The Supreme Modules Lite plugin for WordPress is vulnerable to arbitrary file upload in all versions up to, and including, 2.5.62. This is due to insufficient file type validation detecting JSON files, allowing double extension files to bypass sanitization while being accepted as a valid JSON file. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2025-13062"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-15T14:16:25Z",
"severity": "HIGH"
},
"details": "The Supreme Modules Lite plugin for WordPress is vulnerable to arbitrary file upload in all versions up to, and including, 2.5.62. This is due to insufficient file type validation detecting JSON files, allowing double extension files to bypass sanitization while being accepted as a valid JSON file. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-36p2-cfmm-wp8w",
"modified": "2026-01-15T15:31:19Z",
"published": "2026-01-15T15:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13062"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3423427/supreme-modules-for-divi"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1819f2eb-51ef-4ba4-9137-ab64710fa6c8?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-36PV-C48C-24FW
Vulnerability from github – Published: 2025-10-09 00:31 – Updated: 2025-10-09 00:31A security vulnerability has been detected in code-projects Voting System 1.0. This affects an unknown function of the file /admin/voters_add.php. Such manipulation of the argument photo leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
{
"affected": [],
"aliases": [
"CVE-2025-11508"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-08T23:15:30Z",
"severity": "MODERATE"
},
"details": "A security vulnerability has been detected in code-projects Voting System 1.0. This affects an unknown function of the file /admin/voters_add.php. Such manipulation of the argument photo leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.",
"id": "GHSA-36pv-c48c-24fw",
"modified": "2025-10-09T00:31:07Z",
"published": "2025-10-09T00:31:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11508"
},
{
"type": "WEB",
"url": "https://github.com/underatted/CVE/issues/13"
},
{
"type": "WEB",
"url": "https://code-projects.org"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.327633"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.327633"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.669458"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-36QV-9GXF-HQXC
Vulnerability from github – Published: 2024-05-16 09:33 – Updated: 2025-02-10 15:32A vulnerability was found in SourceCodester SchoolWebTech 1.0. It has been classified as critical. Affected is an unknown function of the file /improve/home.php. The manipulation of the argument image leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-264534 is the identifier assigned to this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2024-4966"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-16T08:15:39Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in SourceCodester SchoolWebTech 1.0. It has been classified as critical. Affected is an unknown function of the file /improve/home.php. The manipulation of the argument image leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-264534 is the identifier assigned to this vulnerability.",
"id": "GHSA-36qv-9gxf-hqxc",
"modified": "2025-02-10T15:32:11Z",
"published": "2024-05-16T09:33:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4966"
},
{
"type": "WEB",
"url": "https://github.com/CveSecLook/cve/issues/30"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.264534"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.264534"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.334216"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-36V6-HF6J-M7QP
Vulnerability from github – Published: 2022-05-24 17:27 – Updated: 2022-05-24 17:27Concrete5 up to and including 8.5.2 allows Unrestricted Upload of File with Dangerous Type such as a .php file via File Manager. It is possible to modify site configuration to upload the PHP file and execute arbitrary commands.
{
"affected": [],
"aliases": [
"CVE-2020-24986"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-04T20:15:00Z",
"severity": "HIGH"
},
"details": "Concrete5 up to and including 8.5.2 allows Unrestricted Upload of File with Dangerous Type such as a .php file via File Manager. It is possible to modify site configuration to upload the PHP file and execute arbitrary commands.",
"id": "GHSA-36v6-hf6j-m7qp",
"modified": "2022-05-24T17:27:25Z",
"published": "2022-05-24T17:27:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24986"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/768322"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-36W6-W44M-XQJ9
Vulnerability from github – Published: 2024-03-31 03:30 – Updated: 2024-03-31 03:30A vulnerability classified as critical was found in YouDianCMS up to 9.5.12. This vulnerability affects unknown code of the file App\Lib\Action\Admin\ChannelAction.class.php. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-258778 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
{
"affected": [],
"aliases": [
"CVE-2024-3117"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-31T02:15:09Z",
"severity": "MODERATE"
},
"details": "A vulnerability classified as critical was found in YouDianCMS up to 9.5.12. This vulnerability affects unknown code of the file App\\Lib\\Action\\Admin\\ChannelAction.class.php. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-258778 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-36w6-w44m-xqj9",
"modified": "2024-03-31T03:30:28Z",
"published": "2024-03-31T03:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-3117"
},
{
"type": "WEB",
"url": "https://github.com/Luci4n555/CVE-Report/blob/main/YouDianCMS9.5.12.md"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.258778"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.258778"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.302925"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
Mitigation
Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.[REF-422] [REF-423]
Mitigation MIT-21
Strategy: Enforcement by Conversion
When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
Mitigation
Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]
Mitigation MIT-5
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- For example, limiting filenames to alphanumeric characters can help to restrict the introduction of unintended file extensions.
Mitigation
Define a very limited set of allowable extensions and only generate filenames that end in these extensions. Consider the possibility of XSS (CWE-79) before allowing .html or .htm file types.
Mitigation
Strategy: Input Validation
Ensure that only one extension is used in the filename. Some web servers, including some versions of Apache, may process files based on inner extensions so that "filename.php.gif" is fed to the PHP interpreter.[REF-422] [REF-423]
Mitigation
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation MIT-15
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation
Do not rely exclusively on sanity checks of file contents to ensure that the file is of the expected type and size. It may be possible for an attacker to hide code in some file segments that will still be executed by the server. For example, GIF images may contain a free-form comments field.
Mitigation
Do not rely exclusively on the MIME content type or filename attribute when determining how to render a file. Validating the MIME content type and ensuring that it matches the extension is only a partial solution.
Mitigation MIT-17
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
Mitigation MIT-22
Strategy: Sandbox or Jail
- Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
- OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs
In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.