CWE-94
Improper Control of Generation of Code ('Code Injection')
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CVE-2021-21433 (GCVE-0-2021-21433)
Vulnerability from cvelistv5 – Published: 2021-04-09 17:55 – Updated: 2024-08-03 18:16
VLAI
Title
Remote code execution on discord-recon .dirsearch and .arjun commands due to improper input validation
Summary
Discord Recon Server is a bot that allows you to do your reconnaissance process from your Discord. Remote code execution in version 0.0.1 would allow remote users to execute commands on the server resulting in serious issues. This flaw is patched in 0.0.2.
Severity
9.9 (Critical)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/DEMON1A/Discord-Recon/security… | x_refsource_CONFIRM |
| https://github.com/DEMON1A/Discord-Recon/issues/6 | x_refsource_MISC |
| https://github.com/DEMON1A/Discord-Recon/commit/2… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| DEMON1A | Discord-Recon |
Affected:
<= 0.0.1
|
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CVE-2021-22053 (GCVE-0-2021-22053)
Vulnerability from cvelistv5 – Published: 2021-11-19 15:56 – Updated: 2024-08-03 18:30
VLAI
Summary
Applications using both `spring-cloud-netflix-hystrix-dashboard` and `spring-boot-starter-thymeleaf` expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at `/hystrix/monitor;[user-provided data]`, the path elements following `hystrix/monitor` are being evaluated as SpringEL expressions, which can lead to code execution.
Severity
No CVSS data available.
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tanzu.vmware.com/security/cve-2021-22053 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Spring Cloud Netflix |
Affected:
Spring Cloud Netflix versions 2.2.x prior to 2.2.10.Release + and old unsupported versions
|
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CVE-2021-22117 (GCVE-0-2021-22117)
Vulnerability from cvelistv5 – Published: 2021-05-18 12:47 – Updated: 2024-08-03 18:30
VLAI
Summary
RabbitMQ installers on Windows prior to version 3.8.16 do not harden plugin directory permissions, potentially allowing attackers with sufficient local filesystem permissions to add arbitrary plugins.
Severity
No CVSS data available.
CWE
- CWE-94 - Improper Control of Generation of Code
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tanzu.vmware.com/security/cve-2021-22117 | x_refsource_MISC |
Impacted products
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CVE-2021-22150 (GCVE-0-2021-22150)
Vulnerability from cvelistv5 – Published: 2023-11-22 00:30 – Updated: 2024-12-02 20:33
VLAI
Title
Kibana code execution issue
Summary
It was discovered that a user with Fleet admin permissions could upload a malicious package. Due to using an older version of the js-yaml library, this package would be loaded in an insecure manner, allowing an attacker to execute commands on the Kibana server.
Severity
6.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code
Assigner
References
2 references
Impacted products
Date Public
2021-09-01 16:10
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CVE-2021-22282 (GCVE-0-2021-22282)
Vulnerability from cvelistv5 – Published: 2024-02-02 06:38 – Updated: 2025-06-17 21:29
VLAI
Title
RCE in B&R Automation Studio with crafted project files
Summary
Improper Control of Generation of Code ('Code Injection') vulnerability in B&R Industrial Automation Automation Studio allows Local Execution of Code.This issue affects Automation Studio: from 4.0 through 4.12.
Severity
8.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| B&R Industrial Automation | Automation Studio |
Affected:
4.0 , ≤ 4.12
(custom)
|
Date Public
2021-10-28 18:30
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CVE-2021-22557 (GCVE-0-2021-22557)
Vulnerability from cvelistv5 – Published: 2021-10-04 10:10 – Updated: 2024-08-03 18:44
VLAI
Title
Code execution in SLO Generator via YAML Payload
Summary
SLO generator allows for loading of YAML files that if crafted in a specific format can allow for code execution within the context of the SLO Generator. We recommend upgrading SLO Generator past https://github.com/google/slo-generator/pull/173
Severity
5.3 (Medium)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/google/slo-generator/pull/173 | x_refsource_MISC |
| http://packetstormsecurity.com/files/164426/Googl… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Google LLC | SLO Generator |
Affected:
unspecified , ≤ 2.0.0
(custom)
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CVE-2021-22894 (GCVE-0-2021-22894)
Vulnerability from cvelistv5 – Published: 2021-05-27 11:15 – Updated: 2025-10-21 23:25
VLAI
Summary
A buffer overflow vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to execute arbitrary code as the root user via maliciously crafted meeting room.
Severity
8.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
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Assigner
References
2 references
| URL | Tags |
|---|---|
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| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
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| n/a | Pulse Connect Secure |
Affected:
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CVE-2021-22900 (GCVE-0-2021-22900)
Vulnerability from cvelistv5 – Published: 2021-05-27 11:15 – Updated: 2025-10-21 23:25
VLAI
Summary
A vulnerability allowed multiple unrestricted uploads in Pulse Connect Secure before 9.1R11.4 that could lead to an authenticated administrator to perform a file write via a maliciously crafted archive upload in the administrator web interface.
Severity
7.2 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Code Injection (CWE-94)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.pulsesecure.net/articles/Pulse_Securit… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
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| n/a | Pulse Secure Secure |
Affected:
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CVE-2021-22952 (GCVE-0-2021-22952)
Vulnerability from cvelistv5 – Published: 2021-09-23 12:41 – Updated: 2024-08-03 18:58
VLAI
Summary
A vulnerability found in UniFi Talk application V1.12.3 and earlier permits a malicious actor who has already gained access to a network to subsequently control Talk device(s) assigned to said network if they are not yet adopted. This vulnerability is fixed in UniFi Talk application V1.12.5 and later.
Severity
No CVSS data available.
CWE
- CWE-94 - Code Injection (CWE-94)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://community.ui.com/releases/Security-Adviso… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | UniFi Talk application |
Affected:
Fixed on 1.12.5
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CVE-2021-22961 (GCVE-0-2021-22961)
Vulnerability from cvelistv5 – Published: 2021-10-18 12:48 – Updated: 2024-08-03 18:58
VLAI
Summary
A code injection vulnerability exists within the firewall software of GlassWire v2.1.167 that could lead to arbitrary code execution from a file in the user path on first execution.
Severity
No CVSS data available.
CWE
- CWE-94 - Code Injection (CWE-94)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://hackerone.com/reports/1193641 | x_refsource_MISC |
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Mitigation
Phase: Architecture and Design
Strategy: Refactoring
Description:
- Refactor your program so that you do not have to dynamically generate code.
Mitigation
Phase: Architecture and Design
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 which code can be executed by your product.
- 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 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.
- To reduce the likelihood of code injection, use stringent allowlists that limit which constructs are allowed. If you are dynamically constructing code that invokes a function, then verifying that the input is alphanumeric might be insufficient. An attacker might still be able to reference a dangerous function that you did not intend to allow, such as system(), exec(), or exit().
Mitigation
Phase: Testing
Description:
- Use dynamic tools and techniques that interact with the product using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The product's operation may slow down, but it should not become unstable, crash, or generate incorrect results.
Mitigation ID: MIT-32
Phase: Operation
Strategy: Compilation or Build Hardening
Description:
- Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation ID: MIT-32
Phase: Operation
Strategy: Environment Hardening
Description:
- Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation
Phase: Implementation
Description:
- For Python programs, it is frequently encouraged to use the ast.literal_eval() function instead of eval, since it is intentionally designed to avoid executing code. However, an adversary could still cause excessive memory or stack consumption via deeply nested structures [REF-1372], so the python documentation discourages use of ast.literal_eval() on untrusted data [REF-1373].
CAPEC-242: Code Injection
An adversary exploits a weakness in input validation on the target to inject new code into that which is currently executing. This differs from code inclusion in that code inclusion involves the addition or replacement of a reference to a code file, which is subsequently loaded by the target and used as part of the code of some application.
CAPEC-35: Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
CAPEC-77: Manipulating User-Controlled Variables
This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.