CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CVE-2021-1555 (GCVE-0-2021-1555)
Vulnerability from cvelistv5 – Published: 2021-05-22 06:40 – Updated: 2024-11-08 21:20
VLAI
Title
Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection Vulnerabilities
Summary
Multiple vulnerabilities in the web-based management interface of certain Cisco Small Business 100, 300, and 500 Series Wireless Access Points could allow an authenticated, remote attacker to perform command injection attacks against an affected device. These vulnerabilities are due to improper validation of user-supplied input. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the device. To exploit these vulnerabilities, the attacker must have valid administrative credentials for the device.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Business Wireless Access Point Software |
Affected:
n/a
|
Date Public
2021-05-19 00:00
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CVE-2021-21406 (GCVE-0-2021-21406)
Vulnerability from cvelistv5 – Published: 2021-07-21 15:05 – Updated: 2024-08-03 18:09
VLAI
Title
Command Injection vulnerability in the Setup Wizard
Summary
Combodo iTop is an open source, web based IT Service Management tool. In versions prior to 2.7.4, there is a command injection vulnerability in the Setup Wizard when providing Graphviz executable path. The vulnerability is patched in version 2.7.4 and 3.0.0.
Severity
5.8 (Medium)
CWE
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
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| URL | Tags |
|---|---|
| https://github.com/Combodo/iTop/security/advisori… | x_refsource_CONFIRM |
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CVE-2021-21595 (GCVE-0-2021-21595)
Vulnerability from cvelistv5 – Published: 2021-08-16 22:00 – Updated: 2024-09-17 00:30
VLAI
Summary
Dell EMC PowerScale OneFS versions 8.2.x - 9.1.1.x contain an improper neutralization of special elements used in an OS command. This vulnerability could allow the compadmin user to elevate privileges. This only impacts Smartlock WORM compliance mode clusters as a critical vulnerability and Dell recommends to update/upgrade at the earliest opportunity.
Severity
6 (Medium)
CWE
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/000190408 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | PowerScale OneFS |
Affected:
8.2.x - 9.1.1.x
|
Date Public
2021-08-10 00:00
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CVE-2021-22864 (GCVE-0-2021-22864)
Vulnerability from cvelistv5 – Published: 2021-03-23 21:40 – Updated: 2024-08-03 18:51
VLAI
Title
Unsafe configuration options in GitHub Pages leading to remote code execution on GitHub Enterprise Server
Summary
A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted and made it possible to override environment variables leading to code execution on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.0.3 and was fixed in 3.0.3, 2.22.9, and 2.21.17. This vulnerability was reported via the GitHub Bug Bounty program.
Severity
No CVSS data available.
CWE
- CWE-77 - Command Injection - Generic
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://docs.github.com/en/enterprise-server%402.… | x_refsource_MISC |
| https://docs.github.com/en/enterprise-server%402.… | x_refsource_MISC |
| https://docs.github.com/en/enterprise-server%403.… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GitHub | GitHub Enterprise Server |
Affected:
2.21 , < 2.21.17
(custom)
Affected: 2.22 , < 2.22.9 (custom) Affected: 3.0 , < 3.0.3 (custom) |
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CVE-2021-22867 (GCVE-0-2021-22867)
Vulnerability from cvelistv5 – Published: 2021-07-14 20:55 – Updated: 2024-08-03 18:51
VLAI
Title
Unsafe configuration options in GitHub Pages leading to path traversal on GitHub Enterprise Server
Summary
A path traversal vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted and made it possible to read files on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.1.3 and was fixed in 3.1.3, 3.0.11, and 2.22.17. This vulnerability was reported via the GitHub Bug Bounty program.
Severity
No CVSS data available.
CWE
- CWE-77 - Command Injection - Generic
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://docs.github.com/en/enterprise-server%402.… | x_refsource_MISC |
| https://docs.github.com/en/enterprise-server%403.… | x_refsource_MISC |
| https://docs.github.com/en/enterprise-server%403.… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GitHub | GitHub Enterprise Server |
Affected:
2.22 , < 2.22.17
(custom)
Affected: 3.0 , < 3.0.11 (custom) Affected: 3.1 , < 3.1.3 (custom) |
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CVE-2021-22868 (GCVE-0-2021-22868)
Vulnerability from cvelistv5 – Published: 2021-09-24 17:50 – Updated: 2024-08-03 18:51
VLAI
Title
Unsafe configuration options in GitHub Pages leading to path traversal on GitHub Enterprise Server
Summary
A path traversal vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted and made it possible to read files on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.1.8 and was fixed in 3.1.8, 3.0.16, and 2.22.22. This vulnerability was reported via the GitHub Bug Bounty program. This is the result of an incomplete fix for CVE-2021-22867.
Severity
No CVSS data available.
CWE
- CWE-77 - Command Injection - Generic
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://docs.github.com/en/enterprise-server%403.… | x_refsource_MISC |
| https://docs.github.com/en/enterprise-server%403.… | x_refsource_MISC |
| https://docs.github.com/en/enterprise-server%402.… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GitHub | GitHub Enterprise Server |
Affected:
2.22 , < 2.22.22
(custom)
Affected: 3.0 , < 3.0.16 (custom) Affected: 3.1 , < 3.1.8 (custom) |
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CVE-2021-22899 (GCVE-0-2021-22899)
Vulnerability from cvelistv5 – Published: 2021-05-27 11:15 – Updated: 2025-10-21 23:25
VLAI
Summary
A command injection vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to perform remote code execution via Windows Resource Profiles Feature
Severity
8.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-77 - Command Injection - Generic (CWE-77)
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 | |
|---|---|---|---|
| n/a | Pulse Connect Secure |
Affected:
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CVE-2021-22935 (GCVE-0-2021-22935)
Vulnerability from cvelistv5 – Published: 2021-08-16 18:38 – Updated: 2024-08-03 18:58
VLAI
Summary
A vulnerability in Pulse Connect Secure before 9.1R12 could allow an authenticated administrator to perform command injection via an unsanitized web parameter.
Severity
No CVSS data available.
CWE
- CWE-77 - Command Injection - Generic (CWE-77)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.pulsesecure.net/articles/Pulse_Securit… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Pulse Connect Secure |
Affected:
Fixed in 9.1R12
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CVE-2021-22938 (GCVE-0-2021-22938)
Vulnerability from cvelistv5 – Published: 2021-08-16 18:38 – Updated: 2024-08-03 18:58
VLAI
Summary
A vulnerability in Pulse Connect Secure before 9.1R12 could allow an authenticated administrator to perform command injection via an unsanitized web parameter in the administrator web console.
Severity
No CVSS data available.
CWE
- CWE-77 - Command Injection - Generic (CWE-77)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.pulsesecure.net/articles/Pulse_Securit… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Pulse Connect Secure |
Affected:
Fixed in 9.1R12
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CVE-2021-27447 (GCVE-0-2021-27447)
Vulnerability from cvelistv5 – Published: 2021-12-21 17:55 – Updated: 2024-08-03 20:48
VLAI
Title
Mesa Labs AmegaView command injection
Summary
Mesa Labs AmegaView version 3.0 is vulnerable to a command injection, which may allow an attacker to remotely execute arbitrary code.
Severity
10 (Critical)
CWE
- CWE-77 - Command Injection
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsa-2… | x_refsource_MISC |
Impacted products
Credits
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Mitigation
Phase: Architecture and Design
Description:
- If at all possible, use library calls rather than external processes to recreate the desired functionality.
Mitigation
Phase: Implementation
Description:
- If possible, ensure that all external commands called from the program are statically created.
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.
Mitigation
Phase: Operation
Description:
- Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.
Mitigation
Phase: System Configuration
Description:
- Assign permissions that prevent the user from accessing/opening privileged files.
CAPEC-136: LDAP Injection
An attacker manipulates or crafts an LDAP query for the purpose of undermining the security of the target. Some applications use user input to create LDAP queries that are processed by an LDAP server. For example, a user might provide their username during authentication and the username might be inserted in an LDAP query during the authentication process. An attacker could use this input to inject additional commands into an LDAP query that could disclose sensitive information. For example, entering a * in the aforementioned query might return information about all users on the system. This attack is very similar to an SQL injection attack in that it manipulates a query to gather additional information or coerce a particular return value.
CAPEC-15: Command Delimiters
An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
CAPEC-183: IMAP/SMTP Command Injection
An adversary exploits weaknesses in input validation on web-mail servers to execute commands on the IMAP/SMTP server. Web-mail servers often sit between the Internet and the IMAP or SMTP mail server. User requests are received by the web-mail servers which then query the back-end mail server for the requested information and return this response to the user. In an IMAP/SMTP command injection attack, mail-server commands are embedded in parts of the request sent to the web-mail server. If the web-mail server fails to adequately sanitize these requests, these commands are then sent to the back-end mail server when it is queried by the web-mail server, where the commands are then executed. This attack can be especially dangerous since administrators may assume that the back-end server is protected against direct Internet access and therefore may not secure it adequately against the execution of malicious commands.
CAPEC-248: Command Injection
An adversary looking to execute a command of their choosing, injects new items into an existing command thus modifying interpretation away from what was intended. Commands in this context are often standalone strings that are interpreted by a downstream component and cause specific responses. This type of attack is possible when untrusted values are used to build these command strings. Weaknesses in input validation or command construction can enable the attack and lead to successful exploitation.
CAPEC-40: Manipulating Writeable Terminal Devices
This attack exploits terminal devices that allow themselves to be written to by other users. The attacker sends command strings to the target terminal device hoping that the target user will hit enter and thereby execute the malicious command with their privileges. The attacker can send the results (such as copying /etc/passwd) to a known directory and collect once the attack has succeeded.
CAPEC-43: Exploiting Multiple Input Interpretation Layers
An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: <parser1> --> <input validator> --> <parser2>. In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
CAPEC-75: Manipulating Writeable Configuration Files
Generally these are manually edited files that are not in the preview of the system administrators, any ability on the attackers' behalf to modify these files, for example in a CVS repository, gives unauthorized access directly to the application, the same as authorized users.
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.