Common Weakness Enumeration
CWE-94
Allowed-with-ReviewImproper Control of Generation of Code ('Code Injection')
Abstraction: Base · Status: Draft
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.
8307 vulnerabilities reference this CWE, most recent first.
CVE-2021-33693 (GCVE-0-2021-33693)
Vulnerability from cvelistv5 – Published: 2021-09-15 18:01 – Updated: 2024-08-03 23:58
VLAI
EPSS
VEX
Summary
SAP Cloud Connector, version - 2.0, allows an authenticated administrator to modify a configuration file to inject malicious codes that could potentially lead to OS command execution.
Severity
5.7 (Medium)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://wiki.scn.sap.com/wiki/pages/viewpage.acti… | x_refsource_MISC |
| https://launchpad.support.sap.com/#/notes/3058553 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SAP SE | SAP Cloud Connector |
Affected:
< 2.0
|
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CVE-2021-32836 (GCVE-0-2021-32836)
Vulnerability from cvelistv5 – Published: 2021-09-09 02:05 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
Pre-auth unsafe deserialization in ZStack
Summary
ZStack is open source IaaS(infrastructure as a service) software. In ZStack before versions 3.10.12 and 4.1.6 there is a pre-auth unsafe deserialization vulnerability in the REST API. An attacker in control of the request body will be able to provide both the class name and the data to be deserialized and therefore will be able to instantiate an arbitrary type and assign arbitrary values to its fields. This issue may lead to a Denial Of Service. If a suitable gadget is available, then an attacker may also be able to exploit this vulnerability to gain pre-auth remote code execution. For additional details see the referenced GHSL-2021-087.
Severity
7.5 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/zstackio/zstack/security/advis… | x_refsource_CONFIRM |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_MISC |
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CVE-2021-32834 (GCVE-0-2021-32834)
Vulnerability from cvelistv5 – Published: 2021-09-09 01:50 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
Arbitrary Groovy script evaluation in Eclipse Keti
Summary
Eclipse Keti is a service that was designed to protect RESTfuls API using Attribute Based Access Control (ABAC). In Keti a user able to create Policy Sets can run arbitrary code by sending malicious Groovy scripts which will escape the configured Groovy sandbox. This vulnerability is known to exist in the latest commit at the time of writing this CVE (commit a1c8dbe). For more details see the referenced GHSL-2021-063.
Severity
8.2 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_CONFIRM |
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CVE-2021-32831 (GCVE-0-2021-32831)
Vulnerability from cvelistv5 – Published: 2021-08-30 20:40 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
Code injection in total.js
Summary
Total.js framework (npm package total.js) is a framework for Node.js platfrom written in pure JavaScript similar to PHP's Laravel or Python's Django or ASP.NET MVC. In total.js framework before version 3.4.9, calling the utils.set function with user-controlled values leads to code-injection. This can cause a variety of impacts that include arbitrary code execution. This is fixed in version 3.4.9.
Severity
7.5 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/totaljs/framework/commit/887b0… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_CONFIRM |
| https://github.com/totaljs/framework/blob/e644167… | x_refsource_MISC |
| https://www.npmjs.com/package/total.js | x_refsource_MISC |
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CVE-2021-32829 (GCVE-0-2021-32829)
Vulnerability from cvelistv5 – Published: 2021-08-17 16:00 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
Post-authentication Remote Code Execution (RCE) in ZStack REST API
Summary
ZStack is open source IaaS(infrastructure as a service) software aiming to automate datacenters, managing resources of compute, storage, and networking all by APIs. Affected versions of ZStack REST API are vulnerable to post-authentication Remote Code Execution (RCE) via bypass of the Groovy shell sandbox. The REST API exposes the GET zstack/v1/batch-queries?script endpoint which is backed up by the BatchQueryAction class. Messages are represented by the APIBatchQueryMsg, dispatched to the QueryFacadeImpl facade and handled by the BatchQuery class. The HTTP request parameter script is mapped to the APIBatchQueryMsg.script property and evaluated as a Groovy script in BatchQuery.query the evaluation of the user-controlled Groovy script is sandboxed by SandboxTransformer which will apply the restrictions defined in the registered (sandbox.register()) GroovyInterceptor. Even though the sandbox heavily restricts the receiver types to a small set of allowed types, the sandbox is non effective at controlling any code placed in Java annotations and therefore vulnerable to meta-programming escapes. This issue leads to post-authenticated remote code execution. For more details see the referenced GHSL-2021-065. This issue is patched in versions 3.8.21, 3.10.8, and 4.1.0.
Severity
9.6 (Critical)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_CONFIRM |
| https://github.com/zstackio/zstack/security/advis… | x_refsource_MISC |
| https://blog.orange.tw/2019/02/abusing-meta-progr… | x_refsource_MISC |
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CVE-2021-32809 (GCVE-0-2021-32809)
Vulnerability from cvelistv5 – Published: 2021-08-12 17:10 – Updated: 2024-08-03 23:33
VLAI
EPSS
VEX
Title
Arbitrary HTML injection vulnerability in ckeditor
Summary
ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.
Severity
4.6 (Medium)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/ckeditor/ckeditor4/security/ad… | x_refsource_CONFIRM |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
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CVE-2021-32706 (GCVE-0-2021-32706)
Vulnerability from cvelistv5 – Published: 2021-08-04 17:50 – Updated: 2024-08-03 23:25
VLAI
EPSS
VEX
Title
(Authenticated) Remote Code Execution Possible in Web Interface 5.5
Summary
Pi-hole's Web interface provides a central location to manage a Pi-hole instance and review performance statistics. Prior to Pi-hole Web interface version 5.5.1, the `validDomainWildcard` preg_match filter allows a malicious character through that can be used to execute code, list directories, and overwrite sensitive files. The issue lies in the fact that one of the periods is not escaped, allowing any character to be used in its place. A patch for this vulnerability was released in version 5.5.1.
Severity
7.6 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pi-hole/AdminLTE/security/advi… | x_refsource_CONFIRM |
| https://github.com/pi-hole/AdminLTE/releases/tag/v5.5.1 | x_refsource_MISC |
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CVE-2021-32673 (GCVE-0-2021-32673)
Vulnerability from cvelistv5 – Published: 2021-06-08 17:00 – Updated: 2024-08-03 23:25
VLAI
EPSS
VEX
Title
Remote Command Execution in reg-keygen-git-hash-plugin
Summary
reg-keygen-git-hash-plugin is a reg-suit plugin to detect the snapshot key to be compare with using Git commit hash. reg-keygen-git-hash-plugin through and including 0.10.15 allow remote attackers to execute of arbitrary commands. Upgrade to version 0.10.16 or later to resolve this issue.
Severity
8.8 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/reg-viz/reg-suit/security/advi… | x_refsource_CONFIRM |
| https://github.com/reg-viz/reg-suit/commit/f84ad9… | x_refsource_MISC |
| https://github.com/reg-viz/reg-suit/releases/tag/… | x_refsource_MISC |
| https://www.npmjs.com/package/reg-keygen-git-hash… | x_refsource_MISC |
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CVE-2021-32621 (GCVE-0-2021-32621)
Vulnerability from cvelistv5 – Published: 2021-05-28 21:05 – Updated: 2024-08-03 23:25
VLAI
EPSS
VEX
Title
Script injection without script or programming rights through Gadget titles
Summary
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In versions prior to 12.6.7 and 12.10.3, a user without Script or Programming right is able to execute script requiring privileges by editing gadget titles in the dashboard. The issue has been patched in XWiki 12.6.7, 12.10.3 and 13.0RC1.
Severity
8.8 (High)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/xwiki/xwiki-platform/security/… | x_refsource_CONFIRM |
| https://jira.xwiki.org/browse/XWIKI-17794 | x_refsource_MISC |
| https://github.com/xwiki/xwiki-platform/commit/bb… | x_refsource_MISC |
| https://jay-from-future.github.io/cve/2021/06/17/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| xwiki | xwiki-platform |
Affected:
< 12.6.7
Affected: >= 12.10.0, < 12.10.3 |
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"lang": "eng",
"value": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In versions prior to 12.6.7 and 12.10.3, a user without Script or Programming right is able to execute script requiring privileges by editing gadget titles in the dashboard. The issue has been patched in XWiki 12.6.7, 12.10.3 and 13.0RC1."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"problemtype_data": [
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"description": [
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"value": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)"
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"name": "https://jira.xwiki.org/browse/XWIKI-17794",
"refsource": "MISC",
"url": "https://jira.xwiki.org/browse/XWIKI-17794"
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"name": "https://github.com/xwiki/xwiki-platform/commit/bb7068bd911f91e5511f3cfb03276c7ac81100bc",
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"name": "https://jay-from-future.github.io/cve/2021/06/17/xwiki-rce-cve.html",
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"source": {
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"discovery": "UNKNOWN"
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"cveId": "CVE-2021-32621",
"datePublished": "2021-05-28T21:05:11.000Z",
"dateReserved": "2021-05-12T00:00:00.000Z",
"dateUpdated": "2024-08-03T23:25:30.541Z",
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CVE-2021-29505 (GCVE-0-2021-29505)
Vulnerability from cvelistv5 – Published: 2021-05-28 21:00 – Updated: 2025-05-29 23:30
VLAI
EPSS
VEX
Title
XStream is vulnerable to a Remote Command Execution attack
Summary
XStream is software for serializing Java objects to XML and back again. A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types is affected. The vulnerability is patched in version 1.4.17.
Severity
7.5 (High)
CWE
Assigner
References
20 references
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Mitigation
Architecture and Design
Strategy: Refactoring
Refactor your program so that you do not have to dynamically generate code.
Mitigation
Architecture and Design
- 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 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.
- 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
Testing
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 MIT-32
Operation
Strategy: Compilation or Build Hardening
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 MIT-32
Operation
Strategy: Environment Hardening
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
Implementation
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.