CWE-434

Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

CVE-2023-1558 (GCVE-0-2023-1558)

Vulnerability from cvelistv5 – Published: 2023-03-22 11:00 – Updated: 2024-08-02 05:49
VLAI
Title
Simple and Beautiful Shopping Cart System uploadera.php unrestricted upload
Summary
A vulnerability classified as critical has been found in Simple and Beautiful Shopping Cart System 1.0. This affects an unknown part of the file uploadera.php. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-223551.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.223551 vdb-entrytechnical-description
https://vuldb.com/?ctiid.223551 signaturepermissions-required
https://github.com/nightcloudos/bug_report/blob/m… exploit
Impacted products
Vendor Product Version
n/a Simple and Beautiful Shopping Cart System Affected: 1.0
Credits
niclo (VulDB User)
Show details on NVD website

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CVE-2023-1559 (GCVE-0-2023-1559)

Vulnerability from cvelistv5 – Published: 2023-03-22 11:31 – Updated: 2024-08-02 05:49
VLAI
Title
SourceCodester Storage Unit Rental Management System unrestricted upload
Summary
A vulnerability classified as problematic was found in SourceCodester Storage Unit Rental Management System 1.0. This vulnerability affects unknown code of the file classes/Users.php?f=save. The manipulation leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-223552.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.223552 vdb-entrytechnical-description
https://vuldb.com/?ctiid.223552 signaturepermissions-required
https://github.com/ret2hh/bug_report/blob/main/UP… exploit
Impacted products
Credits
bit3hh (VulDB User)
Show details on NVD website

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CVE-2023-1561 (GCVE-0-2023-1561)

Vulnerability from cvelistv5 – Published: 2023-03-22 12:00 – Updated: 2024-08-02 05:49
VLAI
Title
code-projects Simple Online Hotel Reservation System add_room.php unrestricted upload
Summary
A vulnerability, which was classified as critical, was found in code-projects Simple Online Hotel Reservation System 1.0. Affected is an unknown function of the file add_room.php. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. VDB-223554 is the identifier assigned to this vulnerability.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.223554 vdb-entrytechnical-description
https://vuldb.com/?ctiid.223554 signaturepermissions-required
https://github.com/sincere9/Bug-Hub/blob/main/SIM… broken-link
Impacted products
Credits
sincere (VulDB User)
Show details on NVD website

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CVE-2023-1684 (GCVE-0-2023-1684)

Vulnerability from cvelistv5 – Published: 2023-03-29 04:00 – Updated: 2024-08-02 05:57
VLAI
Title
HadSky unrestricted upload
Summary
A vulnerability was found in HadSky 7.7.16. It has been classified as problematic. This affects an unknown part of the file upload/index.php?c=app&a=superadmin:index. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-224241 was assigned to this vulnerability.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.224241 vdb-entrytechnical-description
https://vuldb.com/?ctiid.224241 signaturepermissions-required
https://gitee.com/wkstestete/cve/blob/master/uplo… exploit
Impacted products
Vendor Product Version
n/a HadSky Affected: 7.7.16
Credits
wkstestete (VulDB User)
Show details on NVD website

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CVE-2023-1713 (GCVE-0-2023-1713)

Vulnerability from cvelistv5 – Published: 2023-11-01 09:02 – Updated: 2024-09-05 19:55
VLAI
Title
Bitrix24 Remote Command Execution (RCE) via Insecure Temporary File Creation
Summary
Insecure temporary file creation in bitrix/modules/crm/lib/order/import/instagram.php in Bitrix24 22.0.300 hosted on Apache HTTP Server allows remote authenticated attackers to execute arbitrary code via uploading a crafted ".htaccess" file.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
URL Tags
https://starlabs.sg/advisories/23/23-1713/ third-party-advisory
Impacted products
Vendor Product Version
Bitrix24 Bitrix24 Affected: 0 , ≤ 22.0.300 (custom)
Create a notification for this product.
Credits
Lam Jun Rong & Li Jiantao of STAR Labs SG Pte. Ltd. (@starlabs_sg)
Show details on NVD website

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CVE-2023-1720 (GCVE-0-2023-1720)

Vulnerability from cvelistv5 – Published: 2023-11-01 09:04 – Updated: 2024-09-05 19:41
VLAI
Title
Bitrix24 Stored Cross-Site Scripting (XSS) via File Upload
Summary
Lack of mime type response header in Bitrix24 22.0.300 allows authenticated remote attackers to execute arbitrary JavaScript code in the victim's browser, and possibly execute arbitrary PHP code on the server if the victim has administrator privilege, via uploading a crafted HTML file through /desktop_app/file.ajax.php?action=uploadfile.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
URL Tags
https://starlabs.sg/advisories/23/23-1720/ third-party-advisory
Impacted products
Vendor Product Version
Bitrix24 Bitrix24 Affected: 0 , ≤ 22.0.300 (custom)
Create a notification for this product.
Credits
Lam Jun Rong & Li Jiantao of STAR Labs SG Pte. Ltd. (@starlabs_sg)
Show details on NVD website

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CVE-2023-1721 (GCVE-0-2023-1721)

Vulnerability from cvelistv5 – Published: 2023-06-23 23:02 – Updated: 2024-11-27 19:55
VLAI
Title
Yoga Class Registration System 1.0 - RCE
Summary
Yoga Class Registration System version 1.0 allows an administrator to execute commands on the server. This is possible because the application does not correctly validate the thumbnails of the classes uploaded by the administrators.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Date Public
2023-06-23 17:00
Show details on NVD website

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CVE-2023-1728 (GCVE-0-2023-1728)

Vulnerability from cvelistv5 – Published: 2023-04-04 08:40 – Updated: 2026-05-22 12:52
VLAI
Title
Unrestricted Upload of File with Dangerous Type in Fernus LMS
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in Fernus Informatics LMS allows OS Command Injection, Server Side Include (SSI) Injection. This issue affects LMS: before 23.04.03.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Fernus Informatics LMS Affected: 0 , < 23.04.03 (custom)
Create a notification for this product.
Date Public
2023-04-04 08:45
Credits
Mustafa Anil YILDIRIM
Show details on NVD website

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CVE-2023-1731 (GCVE-0-2023-1731)

Vulnerability from cvelistv5 – Published: 2023-04-24 13:36 – Updated: 2025-02-04 19:16
VLAI
Title
Improper Input Validation in Meinberg LTOS
Summary
In Meinbergs LTOS versions prior to V7.06.013, the configuration file upload function would not correctly validate the input, which would allow an remote authenticated attacker with high privileges to execute arbitrary commands.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Impacted products
Vendor Product Version
Meinberg LTOS Affected: 0.0.0 , < 7.06.013 (semver)
Create a notification for this product.
Credits
Many thanks to Noam Moshe of Claroty for reporting this vulnerability.
Show details on NVD website

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CVE-2023-1734 (GCVE-0-2023-1734)

Vulnerability from cvelistv5 – Published: 2023-03-30 19:00 – Updated: 2024-08-02 05:57
VLAI
Title
SourceCodester Young Entrepreneur E-Negosyo System unrestricted upload
Summary
A vulnerability classified as critical has been found in SourceCodester Young Entrepreneur E-Negosyo System 1.0. Affected is an unknown function of the file admin/products/controller.php?action=add. The manipulation of the argument image leads to unrestricted upload. It is possible to launch the attack remotely. VDB-224622 is the identifier assigned to this vulnerability.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.224622 vdb-entrytechnical-description
https://vuldb.com/?ctiid.224622 signature
Impacted products
Credits
WWesleywww (VulDB User)
Show details on NVD website

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Mitigation

Phase: Architecture and Design

Description:

  • 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 ID: MIT-21

Phase: Architecture and Design

Strategy: Enforcement by Conversion

Description:

  • 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

Phase: Architecture and Design

Description:

  • Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]
Mitigation ID: MIT-5

Phase: Implementation

Strategy: Input Validation

Description:

  • 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

Phase: Architecture and Design

Description:

  • 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

Phase: Implementation

Strategy: Input Validation

Description:

  • 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

Phase: Implementation

Description:

  • When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation ID: MIT-15

Phase: Architecture and Design

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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 ID: MIT-17

Phases: Architecture and Design, Operation

Strategy: Environment Hardening

Description:

  • 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 ID: MIT-22

Phases: Architecture and Design, Operation

Strategy: Sandbox or Jail

Description:

  • 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.

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