Weakness (CWE)
CWE-494: Download of Code Without Integrity Check
The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code.
How to prevent it (5 mitigations)
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Implementation
Perform proper forward and reverse DNS lookups to detect DNS spoofing.
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Architecture and Design, Operation
Encrypt the code with a reliable encryption scheme before transmitting.
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Speficially, it may be helpful to use tools or frameworks to perform integrity checking on the transmitted code.
- When providing the code that is to be downloaded, such as for automatic updates of the software, then use cryptographic signatures for the code and modify the download clients to verify the signatures. Ensure that the implementation does not contain CWE-295, CWE-320, CWE-347, and related weaknesses.
- Use code signing technologies such as Authenticode. See references [REF-454] [REF-455] [REF-456].
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Architecture and Design, Operation
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.
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Architecture and Design, Operation
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.
Source: MITRE CWE-494
225 results · Feed
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High 7.8
Tobesoft Nexacro14 ActiveX File Download Vulnerability
Tobesoft Nexacro v2019.9.25.1 and earlier version have an arbitrary code execution vulnerability by using method supported by Nexacro14 ActiveX Control. It allows attacker to cause remote code execution.
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High 7.8
Tobesoft XPlatform Arbitrary File Execution Vulnerability
Tobesoft XPlatform v9.1, 9.2.0, 9.2.1 and 9.2.2 have a vulnerability that can load unauthorized DLL files. It allows attacker to cause remote code execution.
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High 7.2
AxECM.cab(ActiveX Control) in Inogard Ebiz4u contains a vulnerability that could allow remote files to be downloaded an…
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Unscored —
Naver Cloud Explorer before 2.2.2.11 allows the system to download an arbitrary file from the attacker's server and exe…
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High 8.0
RFD Attack via "Content-Disposition" Header Sourced from Request Input by Spring MVC or Spring WebFlux Application
In Spring Framework, versions 5.2.x prior to 5.2.3, versions 5.1.x prior to 5.1.13, and versions 5.0.x prior to 5.0.16, an application is vulnerable to a reflected file download (RFD) attack when it sets a "Content-Disposition" header in the response where th…
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Unscored —
RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below insufficiently validate where upgrade packages are downloa…
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Unscored —
The Cobham EXPLORER 710, firmware version 1.07, does not validate its firmware image
The Cobham EXPLORER 710, firmware version 1.07, does not validate its firmware image. Development scripts left in the firmware can be used to upload a custom firmware image that the device runs. This could allow an unauthenticated, local attacker to upload th…
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Medium 5.7
A vulnerability was found in OpenShift builds, versions 4.1 up to 4.3. Builds that extract source from a container imag…
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Medium 4.6
Cargo prior to Rust 1.26.0 may download the wrong dependency
Cargo prior to Rust 1.26.0 may download the wrong dependency if your package.toml file uses the `package` configuration key. Usage of the `package` key to rename dependencies in `Cargo.toml` is ignored in Rust 1.25.0 and prior. When Rust 1.25.0 and prior is u…
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High 8.1
High severity vulnerability that affects generator-jhipster
## Generated code uses repository configuration that downloads over HTTP instead of HTTPS ### Impact Gradle users were using the http://repo.spring.io/plugins-release repositories in plain HTTP, and not HTTPS, so a man-in-the-middle attack was possible at bui…
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Unscored —
Philips IntelliVue WLAN, portable patient monitors, WLAN Version A, Firmware A.03.09, WLAN Version A, Firmware A.03.09,…
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Unscored —
Yes24ViewerX ActiveX Control 1.0.327.50126 and earlier versions contains a vulnerability that could allow remote attack…
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High 8.1
Incorrect Resource Transfer Between Spheres in Grails
Grails before 3.3.10 used cleartext HTTP to resolve the SDKMan notification service. NOTE: users' apps were not resolving dependencies over cleartext HTTP.
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Unscored —
PrinterLogic Print Management Software updates and executes the code without origin and code verification
The PrinterLogic Print Management software, versions up to and including 18.3.1.96, updates and executes the code without sufficiently verifying the origin and integrity of the code. An attacker can execute malicious code by compromising the host server, perf…
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High 8.1
Potentially compromised builds
All Xtext & Xtend versions prior to 2.18.0 were built using HTTP instead of HTTPS file transfer and thus the built artifacts may have been compromised.
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High 8.7
Java Projects using HTTP to fetch dependencies
Cloud Foundry cf-deployment, versions prior to 7.9.0, contain java components that are using an insecure protocol to fetch dependencies when building. A remote unauthenticated malicious attacker could hijack the DNS entry for the dependency, and inject malici…
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High 8.1
Eclipse Vorto resolved Maven build artifacts for the Xtext project over HTTP instead of HTTPS
Eclipse Vorto versions prior to 0.11 resolved Maven build artifacts for the Xtext project over HTTP instead of HTTPS. Any of these dependent artifacts could have been maliciously compromised by a MITM attack. Hence produced build artifacts of Vorto might be i…
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High 8.1
Cleartext Transmission of Sensitive Information, Inclusion of Functionality from Untrusted Control Sphere , and Download of Code Without Integrity Check in Eclipse hawkBit
Eclipse hawkBit versions prior to 0.3.0M2 resolved Maven build artifacts for the Vaadin based UI over HTTP instead of HTTPS. Any of these dependent artifacts could have been maliciously compromised by a MITM attack. Hence produced build artifacts of hawkBit m…
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Medium 4.7
The OpenStack RabbitMQ container image insecurely retrieves the rabbitmq_clusterer component over HTTP during the build…
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Unscored —
SHDesigns' Resident Download Manager (as well as the Ethernet Download Manager) does not authenticate firmware downloads before executing code and deploying them to devices
SHDesigns' Resident Download Manager provides firmware update capabilities for Rabbit 2000/3000 CPU boards, which according to the reporter may be used in some industrial control and embedded applications. The Resident Download Manager does not verify that th…
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Unscored —
Ragentek Android software contains an over-the-air update mechanism that communicates over an unencrypted channel, which can allow a remote attacker to execute arbitrary code with root privileges
Android devices with code from Ragentek contain a privileged binary that performs over-the-air (OTA) update checks. Additionally, there are multiple techniques used to hide the execution of this binary. This behavior could be described as a rootkit. This bina…
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Unscored —
Siemens LOGO! Soft Comfort (All versions before V8.2) lacks integrity verification of software packages downloaded via …
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Medium 5.3
Akeo Consulting Rufus prior to version 2.17.1187 does not adequately validate the integrity of updates downloaded over …
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Medium 6.5
Sensys Networks Traffic Sensor Download of Code Without Integrity Check
Sensys Networks VSN240-F and VSN240-T sensors VDS before 2.10.1 and TrafficDOT before 2.10.3 do not verify the integrity of downloaded updates, which allows remote attackers to execute arbitrary code via a Trojan horse update.
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Critical 9.8
Symantec LiveUpdate before 1.6 does not use cryptography to ensure the integrity of download files, which allows remote…