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-2021-27428 (GCVE-0-2021-27428)
Vulnerability from cvelistv5 – Published: 2022-03-23 19:46 – Updated: 2025-04-16 16:40
VLAI
Title
GE UR family Unrestricted Upload of File with Dangerous Type
Summary
GE UR IED firmware versions prior to version 8.1x supports upgrading firmware using UR Setup configuration tool – Enervista UR Setup. This UR Setup tool validates the authenticity and integrity of firmware file before uploading the UR IED. An illegitimate user could upgrade firmware without appropriate privileges. The weakness is assessed, and mitigation is implemented in firmware Version 8.10.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsa-2… | x_refsource_CONFIRM |
| https://www.gegridsolutions.com/Passport/Login.aspx | x_refsource_CONFIRM |
Impacted products
Credits
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CVE-2021-27459 (GCVE-0-2021-27459)
Vulnerability from cvelistv5 – Published: 2021-05-20 11:51 – Updated: 2024-08-03 20:48
VLAI
Summary
A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The webserver of the affected products allows unvalidated files to be uploaded, which an attacker could utilize to execute arbitrary code.
Severity
No CVSS data available.
CWE
- CWE-434 - UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-138-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Emerson Rosemount X-STREAM Gas Analyzer |
Affected:
X-STREAM enhanced XEGP – all revisions, X-STREAM enhanced XEGK – all revisions, X-STREAM enhanced XEFD – all revisions, X-STREAM enhanced XEXF – all revisions
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CVE-2021-27489 (GCVE-0-2021-27489)
Vulnerability from cvelistv5 – Published: 2021-06-16 11:59 – Updated: 2024-08-03 21:26
VLAI
Summary
ZOLL Defibrillator Dashboard, v prior to 2.2, The web application allows a non-administrative user to upload a malicious file. This file could allow an attacker to remotely execute arbitrary commands.
Severity
No CVSS data available.
CWE
- CWE-434 - UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsma-21-161-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | ZOLL Defibrillator Dashboard |
Affected:
All versions prior to 2.2
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CVE-2021-27771 (GCVE-0-2021-27771)
Vulnerability from cvelistv5 – Published: 2022-05-12 21:25 – Updated: 2024-09-17 01:40
VLAI
Title
HCL Sametime is susceptible a file transfer service vulnerability
Summary
User SID can be modified resulting in an Arbitrary File Upload or deletion of directories causing a Denial of Service. When interacting in a normal matter with the Sametime chat application, users hold a cookie containing their session ID (SID). This value is also used when sending chat messages, receiving notifications and/or transferring files.
Severity
8.2 (High)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://support.hcltechsw.com/csm?id=kb_article&s… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HCL Software | Sametime |
Affected:
11.6
|
Date Public
2022-04-15 00:00
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CVE-2021-28173 (GCVE-0-2021-28173)
Vulnerability from cvelistv5 – Published: 2021-04-06 11:20 – Updated: 2024-09-16 22:55
VLAI
Title
Vangene deltaFlow E-platform - Arbitrary File Upload
Summary
The file upload function of Vangene deltaFlow E-platform does not perform access controlled properly. Remote attackers can upload and execute arbitrary files without login.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.chtsecurity.com/news/7f0874b5-516b-46… | x_refsource_MISC |
| https://www.twcert.org.tw/tw/cp-132-4620-58f9c-1.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Vangene | deltaFlow E-platform |
Affected:
4
|
Date Public
2021-04-06 00:00
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CVE-2021-29092 (GCVE-0-2021-29092)
Vulnerability from cvelistv5 – Published: 2021-06-01 09:45 – Updated: 2024-09-16 19:05
VLAI
Summary
Unrestricted upload of file with dangerous type vulnerability in file management component in Synology Photo Station before 6.8.14-3500 allows remote authenticated users to execute arbitrary code via unspecified vectors.
Severity
8.8 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.synology.com/security/advisory/Synolo… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Synology | Synology Photo Station |
Affected:
unspecified , < 6.8.14-3500
(custom)
|
Date Public
2021-05-31 00:00
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CVE-2021-32538 (GCVE-0-2021-32538)
Vulnerability from cvelistv5 – Published: 2021-07-07 14:12 – Updated: 2024-09-17 04:29
VLAI
Title
ARTWARE CMS - Unrestricted Upload of File
Summary
ARTWARE CMS parameter of image upload function does not filter the type of upload files which allows remote attackers can upload arbitrary files without logging in, and further execute code unrestrictedly.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-4850-9b53f-1.html | x_refsource_MISC |
Impacted products
Date Public
2021-07-02 00:00
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CVE-2021-32630 (GCVE-0-2021-32630)
Vulnerability from cvelistv5 – Published: 2021-05-20 16:45 – Updated: 2024-08-03 23:25
VLAI
Title
Various
Summary
Admidio is a free, open source user management system for websites of organizations and groups. In Admidio before version 4.0.4, there is an authenticated RCE via .phar file upload. A php web shell can be uploaded via the Documents & Files upload feature. Someone with upload permissions could rename the php shell with a .phar extension, visit the file, triggering the payload for a reverse/bind shell. This can be mitigated by excluding a .phar file extension to be uploaded (like you did with .php .phtml .php5 etc). The vulnerability is patched in version 4.0.4.
Severity
9.6 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Admidio/admidio/security/advis… | x_refsource_CONFIRM |
| https://github.com/Admidio/admidio/issues/994 | x_refsource_MISC |
| https://github.com/Admidio/admidio/releases/tag/v4.0.4 | x_refsource_MISC |
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CVE-2021-32955 (GCVE-0-2021-32955)
Vulnerability from cvelistv5 – Published: 2021-08-30 17:11 – Updated: 2024-08-03 23:33
VLAI
Summary
Delta Electronics DIAEnergie Version 1.7.5 and prior allows unrestricted file uploads, which may allow an attacker to remotely execute code.
Severity
No CVSS data available.
CWE
- CWE-434 - UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-238-03 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Delta Electronics DIAEnergie |
Affected:
DIAEnergie Version 1.7.5 and prior
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CVE-2021-32961 (GCVE-0-2021-32961)
Vulnerability from cvelistv5 – Published: 2022-04-01 22:17 – Updated: 2025-04-16 16:34
VLAI
Title
MDT AutoSave Unrestricted Upload of File with Dangerous Type
Summary
A getfile function in MDT AutoSave versions prior to v6.02.06 enables a user to supply an optional parameter, resulting in the processing of a request in a special manner. This can result in the execution of an unzip command and place a malicious .exe file in one of the locations the function looks for and get execution capabilities.
Severity
7.5 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsa-2… | x_refsource_CONFIRM |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| MDT Software | MDT AutoSave |
Affected:
unspecified , < 6.02.06
(custom)
|
|
| MDT Software | MDT AutoSave |
Affected:
7.00 , < 7.04
(custom)
|
|
| MDT Software | AutoSave for System Platform (A4SP) |
Affected:
unspecified , < 4.01
(custom)
|
|
| MDT Software | A4SP |
Affected:
5.00
|
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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.