Common Weakness Enumeration

CWE-434

Allowed

Unrestricted 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.

5971 vulnerabilities reference this CWE, most recent first.

CVE-2023-2419 (GCVE-0-2023-2419)

Vulnerability from cvelistv5 – Published: 2023-04-29 01:00 – Updated: 2024-08-02 06:19
VLAI
Title
Zhong Bang CRMEB SystemAttachmentServices.php videoUpload unrestricted upload
Summary
A vulnerability was found in Zhong Bang CRMEB 4.6.0. It has been declared as critical. This vulnerability affects the function videoUpload of the file \crmeb\app\services\system\attachment\SystemAttachmentServices.php. The manipulation of the argument filename 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-227716.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.227716 vdb-entrytechnical-description
https://vuldb.com/?ctiid.227716 signaturepermissions-required
https://github.com/crmeb/CRMEB/issues/77 exploitissue-tracking
Impacted products
Vendor Product Version
Zhong Bang CRMEB Affected: 4.6.0
Create a notification for this product.
Credits
keyman (VulDB User)
Show details on NVD website

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CVE-2023-2246 (GCVE-0-2023-2246)

Vulnerability from cvelistv5 – Published: 2023-04-23 15:31 – Updated: 2024-11-22 19:54
VLAI
Title
SourceCodester Online Pizza Ordering System unrestricted upload
Summary
A vulnerability has been found in SourceCodester Online Pizza Ordering System 1.0 and classified as critical. This vulnerability affects unknown code of the file admin/ajax.php?action=save_settings. The manipulation of the argument img 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-227236.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.227236 vdb-entrytechnical-description
https://vuldb.com/?ctiid.227236 signaturepermissions-required
https://docs.google.com/document/d/1Bzt1UOXHJYyNF… exploit
Impacted products
Credits
T4y1oR (VulDB User)
Show details on NVD website

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CVE-2023-2245 (GCVE-0-2023-2245)

Vulnerability from cvelistv5 – Published: 2023-04-22 17:00 – Updated: 2025-02-04 16:28
VLAI
Title
hansunCMS unrestricted upload
Summary
A vulnerability was found in hansunCMS 1.4.3. It has been declared as critical. This vulnerability affects unknown code of the file /ueditor/net/controller.ashx?action=catchimage. The manipulation leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-227230 is the identifier assigned to this vulnerability.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
URL Tags
https://vuldb.com/?id.227230 vdb-entrytechnical-description
https://vuldb.com/?ctiid.227230 signaturepermissions-required
https://github.com/MorStardust/hansuncmswebshell/… exploit
Impacted products
Vendor Product Version
n/a hansunCMS Affected: 1.4.3
Credits
shamrue (VulDB User)
Show details on NVD website

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CVE-2023-2063 (GCVE-0-2023-2063)

Vulnerability from cvelistv5 – Published: 2023-06-02 04:05 – Updated: 2025-03-05 18:58
VLAI
Title
Information disclosure, tampering, deletion and destruction vulnerability in MELSEC iQ-R Series / iQ-F Series EtherNet/IP Modules
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in FTP function on Mitsubishi Electric Corporation MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP allows a remote unauthenticated attacker to cause information disclosure, tampering, deletion or destruction via file upload/download. As a result, the attacker may be able to exploit this for further attacks.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Show details on NVD website

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CVE-2023-2034 (GCVE-0-2023-2034)

Vulnerability from cvelistv5 – Published: 2023-04-14 00:00 – Updated: 2025-02-06 21:01
VLAI
Title
Unrestricted Upload of File with Dangerous Type in froxlor/froxlor
Summary
Unrestricted Upload of File with Dangerous Type in GitHub repository froxlor/froxlor prior to 2.0.14.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Impacted products
Vendor Product Version
froxlor froxlor/froxlor Affected: unspecified , < 2.0.14 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2023-1970 (GCVE-0-2023-1970)

Vulnerability from cvelistv5 – Published: 2023-04-10 16:00 – Updated: 2025-02-07 19:36 Unsupported When Assigned
VLAI
Title
yuan1994 tpAdmin Upload.php Upload unrestricted upload
Summary
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as problematic, has been found in yuan1994 tpAdmin 1.3.12. This issue affects the function Upload of the file application\admin\controller\Upload.php. The manipulation of the argument file leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-225407. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.225407 vdb-entrytechnical-description
https://vuldb.com/?ctiid.225407 signaturepermissions-required
https://tib36.github.io/2023/04/09/tpAdmin-RCE/ broken-linkexploit
Impacted products
Vendor Product Version
yuan1994 tpAdmin Affected: 1.3.12
Create a notification for this product.
Credits
nokali (VulDB User)
Show details on NVD website

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CVE-2023-1942 (GCVE-0-2023-1942)

Vulnerability from cvelistv5 – Published: 2023-04-07 18:00 – Updated: 2024-08-02 06:05
VLAI
Title
SourceCodester Online Computer and Laptop Store Avatar unrestricted upload
Summary
A vulnerability has been found in SourceCodester Online Computer and Laptop Store 1.0 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /admin/?page=user of the component Avatar Handler. The manipulation leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-225319.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.225319 vdb-entrytechnical-description
https://vuldb.com/?ctiid.225319 signaturepermissions-required
https://github.com/boyi0508/Online-Computer-and-L… broken-linkexploit
Impacted products
Credits
boyi (VulDB User)
Show details on NVD website

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CVE-2023-1826 (GCVE-0-2023-1826)

Vulnerability from cvelistv5 – Published: 2023-04-04 09:00 – Updated: 2025-02-11 17:04
VLAI
Title
SourceCodester Online Computer and Laptop Store index.php unrestricted upload
Summary
A vulnerability, which was classified as critical, was found in SourceCodester Online Computer and Laptop Store 1.0. This affects an unknown part of the file php-ocls\admin\system_info\index.php. The manipulation of the argument img leads to unrestricted upload. It is possible to initiate the attack remotely. The identifier VDB-224841 was assigned to this vulnerability.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.224841 vdb-entrytechnical-description
https://vuldb.com/?ctiid.224841 signaturepermissions-required
http://packetstormsecurity.com/files/171790/Onlin… related
Impacted products
Credits
jsbae3449 (VulDB User)
Show details on NVD website

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CVE-2023-1797 (GCVE-0-2023-1797)

Vulnerability from cvelistv5 – Published: 2023-04-02 09:00 – Updated: 2024-08-02 06:05
VLAI
Title
OTCMS unrestricted upload
Summary
A vulnerability classified as critical was found in OTCMS 6.0.1. Affected by this vulnerability is an unknown functionality of the file sysCheckFile.php?mudi=sql. The manipulation leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-224749 was assigned to this vulnerability.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.224749 vdb-entrytechnical-description
https://vuldb.com/?ctiid.224749 signaturepermissions-required
https://gitee.com/wkstestete/cve/blob/master/uplo… exploit
Impacted products
Vendor Product Version
n/a OTCMS Affected: 6.0.1
Credits
wkstestete (VulDB User)
Show details on NVD website

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CVE-2023-1744 (GCVE-0-2023-1744)

Vulnerability from cvelistv5 – Published: 2023-03-30 22:31 – Updated: 2024-08-02 05:57
VLAI
Title
IBOS htaccess unrestricted upload
Summary
A vulnerability classified as critical was found in IBOS 4.5.5. This vulnerability affects unknown code of the component htaccess Handler. 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-224632.
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.224632 vdb-entrytechnical-description
https://vuldb.com/?ctiid.224632 signaturepermissions-required
https://gitee.com/xieqiangweb/cve/blob/master/cve… exploit
Impacted products
Vendor Product Version
n/a IBOS Affected: 4.5.5
Credits
xieqiang (VulDB User)
Show details on NVD website

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Mitigation
Architecture and Design

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
Architecture and Design

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
Architecture and Design

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
Implementation

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
Architecture and Design

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
Implementation

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
Implementation

When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.

Mitigation MIT-15
Architecture and Design

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
Implementation

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
Implementation

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
Architecture and Design Operation

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
Architecture and Design Operation

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.