CWE-73
External Control of File Name or Path
The product allows user input to control or influence paths or file names that are used in filesystem operations.
CVE-2022-24900 (GCVE-0-2022-24900)
Vulnerability from cvelistv5 – Published: 2022-04-29 13:50 – Updated: 2025-04-22 18:02
VLAI
Title
Absolute Path Traversal due to incorrect use of `send_file` call in Piano LED Visualizer
Summary
Piano LED Visualizer is software that allows LED lights to light up as a person plays a piano connected to a computer. Version 1.3 and prior are vulnerable to a path traversal attack. The `os.path.join` call is unsafe for use with untrusted input. When the `os.path.join` call encounters an absolute path, it ignores all the parameters it has encountered till that point and starts working with the new absolute path. Since the "malicious" parameter represents an absolute path, the result of `os.path.join` ignores the static directory completely. Hence, untrusted input is passed via the `os.path.join` call to `flask.send_file` can lead to path traversal attacks. A patch with a fix is available on the `master` branch of the GitHub repository. This can also be fixed by preventing flow of untrusted data to the vulnerable `send_file` function. In case the application logic necessiates this behaviour, one can either use the `flask.safe_join` to join untrusted paths or replace `flask.send_file` calls with `flask.send_from_directory` calls.
Severity
9.9 (Critical)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/onlaj/Piano-LED-Visualizer/sec… | x_refsource_CONFIRM |
| https://github.com/onlaj/Piano-LED-Visualizer/iss… | x_refsource_MISC |
| https://github.com/onlaj/Piano-LED-Visualizer/pull/351 | x_refsource_MISC |
| https://github.com/onlaj/Piano-LED-Visualizer/com… | x_refsource_MISC |
| https://github.com/onlaj/Piano-LED-Visualizer/blo… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| onlaj | Piano-LED-Visualizer |
Affected:
<= 1.3
|
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CVE-2022-2638 (GCVE-0-2022-2638)
Vulnerability from cvelistv5 – Published: 2022-08-29 17:15 – Updated: 2024-08-03 00:46
VLAI
Title
Export All URLs < 4.4 - Admin+ Arbitrary System File Removal
Summary
The Export All URLs WordPress plugin before 4.4 does not validate the path of the file to be removed on the system which is supposed to be the CSV file. This could allow high privilege users to delete arbitrary file from the server
Severity
No CVSS data available.
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/70840a72-ccdc-4e… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Export All URLs |
Affected:
4.4 , < 4.4
(custom)
|
Credits
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CVE-2022-28710 (GCVE-0-2022-28710)
Vulnerability from cvelistv5 – Published: 2022-08-22 18:22 – Updated: 2025-04-15 18:52
VLAI
Summary
An information disclosure vulnerability exists in the chunkFile functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364. A specially-crafted HTTP request can lead to arbitrary file read. An attacker can send an HTTP request to trigger this vulnerability.
Severity
6.5 (Medium)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/WWBN/AVideo/blob/e04b1cd7062e1… | x_refsource_CONFIRM |
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
Date Public
2022-08-16 00:00
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CVE-2022-32761 (GCVE-0-2022-32761)
Vulnerability from cvelistv5 – Published: 2022-08-22 18:25 – Updated: 2025-04-15 18:50
VLAI
Summary
An information disclosure vulnerability exists in the aVideoEncoderReceiveImage functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364. A specially-crafted HTTP request can lead to arbitrary file read. An attacker can send an HTTP request to trigger this vulnerability.
Severity
6.5 (Medium)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/WWBN/AVideo/blob/e04b1cd7062e1… | x_refsource_CONFIRM |
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
Date Public
2022-08-16 00:00
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CVE-2022-34669 (GCVE-0-2022-34669)
Vulnerability from cvelistv5 – Published: 2022-12-30 00:00 – Updated: 2025-04-10 19:48
VLAI
Summary
NVIDIA GPU Display Driver for Windows contains a vulnerability in the user mode layer, where an unprivileged regular user can access or modify system files or other files that are critical to the application, which may lead to code execution, denial of service, escalation of privileges, information disclosure, or data tampering.
Severity
8.8 (High)
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NVIDIA | vGPU software (guest driver) - Windows, NVIDIA Cloud Gaming (guest driver) |
Affected:
All versions prior to and including 14.2, 13.4, and 11.9, and all versions prior to the November 2022 release
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CVE-2022-34765 (GCVE-0-2022-34765)
Vulnerability from cvelistv5 – Published: 2022-07-13 21:11 – Updated: 2024-09-16 19:40
VLAI
Summary
A CWE-73: External Control of File Name or Path vulnerability exists that could cause loading of unauthorized firmware images when user-controlled data is written to the file path. Affected Products: X80 advanced RTU Communication Module (BMENOR2200H) (V2.01 and later), OPC UA Modicon Communication Module (BMENUA0100) (V1.10 and prior)
Severity
5.5 (Medium)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://download.schneider-electric.com/files?p_e… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Schneider Electric | OPC UA Modicon Communication Module |
Affected:
BMENUA0100 , < V1.10
(custom)
|
|
| Schneider Electric | X80 advanced RTU Communication Module |
Affected:
V2.01 , < BMENOR2200H*
(custom)
|
Date Public
2022-07-12 00:00
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CVE-2022-39952 (GCVE-0-2022-39952)
Vulnerability from cvelistv5 – Published: 2023-02-16 18:06 – Updated: 2024-10-23 14:32
VLAI
Summary
A external control of file name or path in Fortinet FortiNAC versions 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.7, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, 8.3.7 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP request.
Severity
9.8 (Critical)
CWE
- CWE-73 - Execute unauthorized code or commands
Assigner
References
1 reference
Impacted products
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CVE-2022-42732 (GCVE-0-2022-42732)
Vulnerability from cvelistv5 – Published: 2022-11-17 00:00 – Updated: 2025-04-29 20:14
VLAI
Summary
A vulnerability has been identified in syngo Dynamics (All versions < VA40G HF01). syngo Dynamics application server hosts a web service using an operation with improper read access control that could allow files to be retrieved from any folder accessible to the account assigned to the website’s application pool.
Severity
7.5 (High)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | syngo Dynamics |
Affected:
All versions < VA40G HF01
|
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CVE-2022-42733 (GCVE-0-2022-42733)
Vulnerability from cvelistv5 – Published: 2022-11-17 00:00 – Updated: 2025-04-29 19:58
VLAI
Summary
A vulnerability has been identified in syngo Dynamics (All versions < VA40G HF01). syngo Dynamics application server hosts a web service using an operation with improper read access control that could allow files to be retrieved from any folder accessible to the account assigned to the website’s application pool.
Severity
7.5 (High)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | syngo Dynamics |
Affected:
All versions < VA40G HF01
|
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CVE-2022-42734 (GCVE-0-2022-42734)
Vulnerability from cvelistv5 – Published: 2022-11-17 00:00 – Updated: 2025-04-29 19:57
VLAI
Summary
A vulnerability has been identified in syngo Dynamics (All versions < VA40G HF01). syngo Dynamics application server hosts a web service using an operation with improper write access control that could allow to write data in any folder accessible to the account assigned to the website’s application pool.
Severity
7.5 (High)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | syngo Dynamics |
Affected:
All versions < VA40G HF01
|
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Mitigation
Phase: Architecture and Design
Description:
- When the set of filenames is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames, and reject all other inputs. For example, ID 1 could map to "inbox.txt" and ID 2 could map to "profile.txt". Features such as the ESAPI AccessReferenceMap provide this capability.
Mitigation
Phases: Architecture and Design, Operation
Description:
- Run your code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict all access to files within a particular directory.
- Examples include the Unix chroot jail and AppArmor. In general, managed code may provide some protection.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of your application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
Mitigation
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 ID: MIT-5.1
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.
- When validating filenames, use stringent allowlists that limit the character set to be used. If feasible, only allow a single "." character in the filename to avoid weaknesses such as CWE-23, and exclude directory separators such as "/" to avoid CWE-36. Use a list of allowable file extensions, which will help to avoid CWE-434.
- Do not rely exclusively on a filtering mechanism that removes potentially dangerous characters. This is equivalent to a denylist, which may be incomplete (CWE-184). For example, filtering "/" is insufficient protection if the filesystem also supports the use of "\" as a directory separator. Another possible error could occur when the filtering is applied in a way that still produces dangerous data (CWE-182). For example, if "../" sequences are removed from the ".../...//" string in a sequential fashion, two instances of "../" would be removed from the original string, but the remaining characters would still form the "../" string.
Mitigation
Phase: Implementation
Description:
- Use a built-in path canonicalization function (such as realpath() in C) that produces the canonical version of the pathname, which effectively removes ".." sequences and symbolic links (CWE-23, CWE-59).
Mitigation
Phases: Installation, Operation
Description:
- Use OS-level permissions and run as a low-privileged user to limit the scope of any successful attack.
Mitigation
Phases: Operation, Implementation
Description:
- If you are using PHP, configure your application so that it does not use register_globals. During implementation, develop your application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.
Mitigation
Phase: Testing
Description:
- Use tools and techniques that require manual (human) analysis, such as penetration testing, threat modeling, and interactive tools that allow the tester to record and modify an active session. These may be more effective than strictly automated techniques. This is especially the case with weaknesses that are related to design and business rules.
CAPEC-13: Subverting Environment Variable Values
The adversary directly or indirectly modifies environment variables used by or controlling the target software. The adversary's goal is to cause the target software to deviate from its expected operation in a manner that benefits the adversary.
CAPEC-267: Leverage Alternate Encoding
An adversary leverages the possibility to encode potentially harmful input or content used by applications such that the applications are ineffective at validating this encoding standard.
CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic
This attack targets the encoding of the URL combined with the encoding of the slash characters. An attacker can take advantage of the multiple ways of encoding a URL and abuse the interpretation of the URL. A URL may contain special character that need special syntax handling in order to be interpreted. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE). For instance US-ASCII space character would be represented with %20. This is often referred as escaped ending or percent-encoding. Since the server decodes the URL from the requests, it may restrict the access to some URL paths by validating and filtering out the URL requests it received. An attacker will try to craft an URL with a sequence of special characters which once interpreted by the server will be equivalent to a forbidden URL. It can be difficult to protect against this attack since the URL can contain other format of encoding such as UTF-8 encoding, Unicode-encoding, etc.
CAPEC-72: URL Encoding
This attack targets the encoding of the URL. An adversary can take advantage of the multiple way of encoding an URL and abuse the interpretation of the URL.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
CAPEC-78: Using Escaped Slashes in Alternate Encoding
This attack targets the use of the backslash in alternate encoding. An adversary can provide a backslash as a leading character and causes a parser to believe that the next character is special. This is called an escape. By using that trick, the adversary tries to exploit alternate ways to encode the same character which leads to filter problems and opens avenues to attack.
CAPEC-79: Using Slashes in Alternate Encoding
This attack targets the encoding of the Slash characters. An adversary would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the adversary many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic
This attack is a specific variation on leveraging alternate encodings to bypass validation logic. This attack leverages the possibility to encode potentially harmful input in UTF-8 and submit it to applications not expecting or effective at validating this encoding standard making input filtering difficult. UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. Legal UTF-8 characters are one to four bytes long. However, early version of the UTF-8 specification got some entries wrong (in some cases it permitted overlong characters). UTF-8 encoders are supposed to use the "shortest possible" encoding, but naive decoders may accept encodings that are longer than necessary. According to the RFC 3629, a particularly subtle form of this attack can be carried out against a parser which performs security-critical validity checks against the UTF-8 encoded form of its input, but interprets certain illegal octet sequences as characters.