Weakness (CWE)
CWE-78: OS Command Injection
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.
How to prevent it (8 mitigations)
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Architecture and Design
If at all possible, use library calls rather than external processes to recreate the desired functionality.
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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.
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Architecture and Design
For any data that will be used to generate a command to be executed, keep as much of that data out of external control as possible. For example, in web applications, this may require storing the data locally in the session's state instead of sending it out to the client in a hidden form field.
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Architecture and Design
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.
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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.
For example, consider using the ESAPI Encoding control [REF-45] or a similar tool, library, or framework. These will help the programmer encode outputs in a manner less prone to error.
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Implementation
While it is risky to use dynamically-generated query strings, code, or commands that mix control and data together, sometimes it may be unavoidable. Properly quote arguments and escape any special characters within those arguments. The most conservative approach is to escape or filter all characters that do not pass an extremely strict allowlist (such as everything that is not alphanumeric or white space). If some special characters are still needed, such as white space, wrap each argument in quotes after the escaping/filtering step. Be careful of argument injection (CWE-88).
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Implementation
If the program to be executed allows arguments to be specified within an input file or from standard input, then consider using that mode to pass arguments instead of the command line.
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Architecture and Design
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
Some languages offer multiple functions that can be used to invoke commands. Where possible, identify any function that invokes a command shell using a single string, and replace it with a function that requires individual arguments. These functions typically perform appropriate quoting and filtering of arguments. For example, in C, the system() function accepts a string that contains the entire command to be executed, whereas execl(), execve(), and others require an array of strings, one for each argument. In Windows, CreateProcess() only accepts one command at a time. In Perl, if system() is provided with an array of arguments, then it will quote each of the arguments.
Source: MITRE CWE-78
931 results · Clear filters · Feed
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Medium 6.4
[thi.ng/egf] Potential arbitrary code execution of `#gpg`-tagged property values
Potential for arbitrary code execution in npm package @thi.ng/egf `#gpg`-tagged property values (only if `decrypt: true` option is enabled). PR with patch has been submitted and will has been released as of v0.4.0 By default the EGF parse functions do NOT att…
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Medium 6.8
Cisco IOS XE ROM Monitor Software for Cisco Industrial Switches OS Command Injection Vulnerability
A vulnerability in the ROM Monitor (ROMMON) of Cisco IOS XE Software for Cisco Catalyst IE3200, IE3300, and IE3400 Rugged Series Switches, Cisco Catalyst IE3400 Heavy Duty Series Switches, and Cisco Embedded Services 3300 Series Switches could allow an unauth…
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Medium 6.7
Cisco IOS XE Software Hardware Initialization Routines Arbitrary Code Execution Vulnerability
A vulnerability in the hardware initialization routines of Cisco IOS XE Software for Cisco 1100 Series Industrial Integrated Services Routers and Cisco ESR6300 Embedded Series Routers could allow an authenticated, local attacker to execute unsigned code at sy…
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Medium 5.8
XStream is vulnerable to a Remote Command Execution attack
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker who has sufficient rights to execute commands of the host only by manipulating the processed inp…
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Medium 5.6
react-dev-utils OS Command Injection in function `getProcessForPort`
react-dev-utils prior to v11.0.4 exposes a function, getProcessForPort, where an input argument is concatenated into a command string to be executed. This function is typically used from react-scripts (in Create React App projects), where the usage is safe. O…
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Medium 6.8
CSV Injection via csv export
PrestaShop is a fully scalable open source e-commerce solution. In PrestaShop before version 1.7.2 there is a CSV Injection vulnerability possible by using shop search keywords via the admin panel. The problem is fixed in 1.7.7.2
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Medium 6.5
Philips Interventional Workstations OS Command Injection
Philips Interventional Workspot (Release 1.3.2, 1.4.0, 1.4.1, 1.4.3, 1.4.5), Coronary Tools/Dynamic Coronary Roadmap/Stentboost Live (Release 1.0), ViewForum (Release 6.3V1L10). The software constructs all or part of an OS command using externally influenced …
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Medium 6.7
Junos OS: Command injection vulnerability in 'request system software' CLI command
A command injection vulnerability in install package validation subsystem of Juniper Networks Junos OS that may allow a locally authenticated attacker with privileges to execute commands with root privilege. To validate a package in Junos before installation,…
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Medium 5.3
OS Command injection in Bolt
Bolt before 3.7.2 does not restrict filter options in a Request in the Twig context, and is therefore inconsistent with the "How to Harden Your PHP for Better Security" guidance.
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Medium 6.4
Command Injection Vulnerability in systeminformation
In systeminformation (npm package) before version 4.31.1 there is a command injection vulnerability. The problem was fixed in version 4.31.1 with a shell string sanitation fix.
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Medium 6.8
XStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.15, is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling. The vulnerability may allow a remote attacker to delete arbitrary know fi…
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Medium 6.8
OS Command Injection - nslookup API
A command injection flaw identified in the nslookup API in Silver Peak Unity ECOSTM (ECOS) appliance software could allow an attacker to execute arbitrary commands with the privileges of the web server running on the EdgeConnect appliance. An attacker could e…
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Medium 6.8
OS Command Injection - Management File Upload
The configuration backup/restore function in Silver Peak Unity ECOSTM (ECOS) appliance software was found to directly incorporate the user-controlled config filename in a subsequent shell command, allowing an attacker to manipulate the resulting command by in…
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Medium 5.6
Command Injection
This affects the package node-notifier before 9.0.0. It allows an attacker to run arbitrary commands on Linux machines due to the options params not being sanitised when being passed an array.
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Medium 5.3
Cisco Secure Web Appliance Privilege Escalation Vulnerability
A vulnerability in the log subscription subsystem of Cisco AsyncOS for the Cisco Secure Web Appliance (formerly Web Security Appliance) could allow an authenticated, local attacker to perform command injection and elevate privileges to root. This vulnerabilit…
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Medium 6.3
Cisco Integrated Management Controller Command Injection Vulnerability
A vulnerability in the web UI of Cisco Integrated Management Controller (IMC) could allow an authenticated, remote attacker to inject arbitrary code and execute arbitrary commands at the underlying operating system level. The vulnerability is due to insuffici…
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Medium 6.7
Cisco FXOS Software Command Injection Vulnerability
A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient input validation of commands supplied by the user. An …
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Medium 6.7
Cisco FXOS Software for Firepower 4100/9300 Series Command Injection Vulnerability
A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient input validation of commands supplied by the user. An …
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Medium 6.6
Command Injection
The package ng-packagr before 10.1.1 are vulnerable to Command Injection via the styleIncludePaths option.
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Medium 6.7
Cisco IOS XE Software Command Injection Vulnerability
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to inject a command to the underlying operating system that will execute with root privileges upon the next reboot of the device. The authenticated user must have…
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Medium 6.8
Cisco IOS XE Software Arbitrary Code Execution Vulnerability
A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker to execute persistent code at boot time and break the chain of trust. This vulnerability is due to incorrect validations by boot scripts when specific ROM monitor (ROMMON) v…
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Medium 5.5
Atop Technology 3G/4G LTE Cellular to Ethernet and Serial Secure Industrial Gateway - Command Injection
Atop Technology industrial 3G/4G gateway contains Command Injection vulnerability. Due to insufficient input validation, the device's web management interface allows attackers to inject specific code and execute system commands without privilege.
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Medium 6.3
Cisco Data Center Network Manager Command Injection Vulnerability
A vulnerability in the Device Manager application of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker to inject arbitrary commands on the affected device. The vulnerability is due to insufficient validation of user-suppli…
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Medium 6.4
Command Injection in iPear
In iPear, the manual execution of the eval() function can lead to command injection. Only PCs where commands are manually executed via "For Developers" are affected. This function allows executing any PHP code within iPear which may change, damage, or steal d…
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Medium 6.4
ActiveX Control(HShell.dll) in Handy Groupware 1.7.3.1 for Windows 7, 8, and 10 allows an attacker to execute arbitrary…
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Medium 6.1CVE-2020-7350 Public exploit
Metasploit Framework Plugin Libnotify Command Injection
Rapid7 Metasploit Framework versions before 5.0.85 suffers from an instance of CWE-78: OS Command Injection, wherein the libnotify plugin accepts untrusted user-supplied data via a remote computer's hostname or service name. An attacker can create a specially…
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Medium 6.7
Cisco FXOS Software CLI Command Injection Vulnerability
A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with a privilege level of root on an affected device. The vulnerability is due to insufficien…
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Medium 6.4
OS Command Injection in Rake
There is an OS command injection vulnerability in Ruby Rake < 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character `|`.
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Medium 6.1
Reflected XSS in SilverStripe
SilverStripe through 4.4.x before 4.4.5 and 4.5.x before 4.5.2 allows Reflected XSS on the login form and custom forms. Silverstripe Forms allow malicious HTML or JavaScript to be inserted through non-scalar FormField attributes, which allows performing XSS (…
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Medium 6.5
Remote Code Execution in Tiny File Manager
In Tiny File Manager before 2.3.9, there is a remote code execution via Upload from URL and Edit/Rename files. Only authenticated users are impacted.
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Medium 6.7
Cisco Unity Express Command Injection Vulnerability
A vulnerability in the CLI of Cisco Unity Express could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. To exploit this vulnerability, an attacker would need valid administrator credentials. The vuln…
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Medium 6.4
Cisco TelePresence Collaboration Endpoint Software Command Injection Vulnerability
A vulnerability in the CLI of Cisco TelePresence Collaboration Endpoint (CE) Software could allow an authenticated, local attacker to perform command injections. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnera…
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Medium 6.7
Cisco NX-OS Software Virtualization Manager Command Injection Vulnerability
A vulnerability in a CLI command related to the virtualization manager (VMAN) in Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with root privileges. The vulnerability i…
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Medium 6.7
Cisco IOS XR Software for Cisco ASR 9000 VMAN CLI Privilege Escalation Vulnerability
A vulnerability in a CLI command related to the virtualization manager (VMAN) in Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux op…
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Medium 6.4
Cisco Integrated Management Controller CLI Command Injection Vulnerability
A vulnerability in the CLI of Cisco Integrated Management Controller (IMC) could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient validation of user-supplied i…
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Medium 6.5
Cisco Integrated Management Controller Information Disclosure Vulnerability
A vulnerability in the Server Utilities of Cisco Integrated Management Controller (IMC) could allow an authenticated, remote attacker to gain unauthorized access to sensitive user information from the configuration data that is stored on the affected system. …
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Medium 6.7
Cisco NX-OS Software Command Injection Vulnerability
A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with the privilege level of root. The vulnerability is due to insufficient validation of arg…
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Medium 6.7
Cisco NX-OS Software Command Injection Vulnerability
A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of arguments passed to…
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Medium 6.7
Cisco NX-OS Software Command Injection Vulnerability
A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of arguments passed to…
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Medium 6.7
Cisco NX-OS Software Command Injection Vulnerability
A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with a privilege level of root. The vulnerability is due to insufficient validation of argum…