Common Weakness Enumeration

CWE-77

Allowed-with-Review

Improper Neutralization of Special Elements used in a Command ('Command Injection')

Abstraction: Class · Status: Draft

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.

5382 vulnerabilities reference this CWE, most recent first.

CVE-2019-12805 (GCVE-0-2019-12805)

Vulnerability from cvelistv5 – Published: 2019-08-09 16:11 – Updated: 2024-09-16 19:05
VLAI
Title
NC Launcher 2 Arbitrary Command Injection Vulnerability
Summary
NCSOFT Game Launcher, NC Launcher2 2.4.1.691 and earlier versions have a vulnerability in the custom protocol handler that could allow remote attacker to execute arbitrary command. User interaction is required to exploit this vulnerability in that the target must visit a malicious web page. This can be leveraged for code execution in the context of the current user.
CWE
  • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
Impacted products
Vendor Product Version
NCSOFT NC Launcher2 Affected: 2.4.1.691 and earlier
Create a notification for this product.
Date Public
2019-08-05 00:00
Show details on NVD website

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CVE-2019-12661 (GCVE-0-2019-12661)

Vulnerability from cvelistv5 – Published: 2019-09-25 20:15 – Updated: 2024-11-20 17:10
VLAI
Title
Cisco IOS XE Software Virtualization Manager CLI Command Injection Vulnerability
Summary
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SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software Affected: unspecified , < n/a (custom)
Create a notification for this product.
Date Public
2019-09-25 00:00
Show details on NVD website

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CVE-2019-12651 (GCVE-0-2019-12651)

Vulnerability from cvelistv5 – Published: 2019-09-25 20:10 – Updated: 2024-11-21 19:14
VLAI
Title
Cisco IOS XE Software Web UI Command Injection Vulnerabilities
Summary
Multiple vulnerabilities in the web-based user interface (Web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to execute commands with elevated privileges on the affected device. For more information about these vulnerabilities, see the Details section of this advisory.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software 3.2.11aSG Affected: unspecified , < n/a (custom)
Create a notification for this product.
Date Public
2019-09-25 00:00
Show details on NVD website

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CVE-2019-12650 (GCVE-0-2019-12650)

Vulnerability from cvelistv5 – Published: 2019-09-25 20:05 – Updated: 2024-11-21 19:14
VLAI
Title
Cisco IOS XE Software Web UI Command Injection Vulnerabilities
Summary
Multiple vulnerabilities in the web-based user interface (Web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to execute commands with elevated privileges on the affected device. For more information about these vulnerabilities, see the Details section of this advisory.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software 3.2.11aSG Affected: unspecified , < n/a (custom)
Create a notification for this product.
Date Public
2019-09-25 00:00
Show details on NVD website

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CVE-2019-12629 (GCVE-0-2019-12629)

Vulnerability from cvelistv5 – Published: 2020-01-26 04:25 – Updated: 2024-11-15 17:47
VLAI
Title
Cisco SD-WAN vManage Command Injection Vulnerability
Summary
A vulnerability in the WebUI of the Cisco SD-WAN Solution could allow an authenticated, remote attacker to inject and execute arbitrary commands with vmanage user privileges on an affected system. The vulnerability is due to insufficient input validation of data parameters for certain fields in the affected solution. An attacker could exploit this vulnerability by configuring a malicious username on the login page of the affected solution. A successful exploit could allow the attacker to inject and execute arbitrary commands with vmanage user privileges on an affected system.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version
Cisco Cisco SD-WAN Solution Affected: unspecified , < n/a (custom)
Create a notification for this product.
Date Public
2020-01-22 00:00
Show details on NVD website

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CVE-2019-11279 (GCVE-0-2019-11279)

Vulnerability from cvelistv5 – Published: 2019-09-26 21:15 – Updated: 2024-09-17 02:36
VLAI
Title
Privilege Escalation via Scope Manipulation in UAA
Summary
CF UAA versions prior to 74.1.0 can request scopes for a client that shouldn't be allowed by submitting an array of requested scopes. A remote malicious user can escalate their own privileges to any scope, allowing them to take control of UAA and the resources it controls.
CWE
  • CWE-77 - Command Injection - Generic
Assigner
References
Impacted products
Vendor Product Version
Cloud Foundry UAA Release (OSS) Affected: prior to 74.1.0
Create a notification for this product.
Date Public
2019-09-10 00:00
Show details on NVD website

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CVE-2019-11278 (GCVE-0-2019-11278)

Vulnerability from cvelistv5 – Published: 2019-09-26 21:11 – Updated: 2024-09-16 23:51
VLAI
Title
Privilege Escalation via Blind SCIM Injection in UAA
Summary
CF UAA versions prior to 74.1.0, allow external input to be directly queried against. A remote malicious user with 'client.write' and 'groups.update' can craft a SCIM query, which leaks information that allows an escalation of privileges, ultimately allowing the malicious user to gain control of UAA scopes they should not have.
CWE
  • CWE-77 - Command Injection - Generic
Assigner
References
Impacted products
Vendor Product Version
Cloud Foundry UAA Release (OSS) Affected: prior to 74.1.0
Create a notification for this product.
Date Public
2019-09-10 00:00
Show details on NVD website

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CVE-2019-7198 (GCVE-0-2019-7198)

Vulnerability from cvelistv5 – Published: 2020-12-10 03:34 – Updated: 2024-09-16 21:07
VLAI
Title
Command Injection Vulnerability in QTS and QuTS hero
Summary
This command injection vulnerability allows attackers to execute arbitrary commands in a compromised application. QNAP have already fixed this vulnerability in the following versions of QTS and QuTS hero. QuTS hero h4.5.1.1472 build 20201031 and later QTS 4.5.1.1456 build 20201015 and later QTS 4.4.3.1354 build 20200702 and later
Severity
No CVSS data available.
CWE
  • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-78 - OS Command Injection
Assigner
References
Impacted products
Vendor Product Version
QNAP Systems Inc. QTS Affected: < 4.5.1.1456
Affected: < 4.4.3.1354
Create a notification for this product.
QNAP Systems Inc. QuTS hero Affected: < h4.5.1.1472
Create a notification for this product.
Date Public
2020-12-07 00:00
Credits
Jan Hoff
Show details on NVD website

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CVE-2019-6579 (GCVE-0-2019-6579)

Vulnerability from cvelistv5 – Published: 2019-04-17 13:40 – Updated: 2024-08-04 20:23
VLAI
Summary
A vulnerability has been identified in Spectrum Power 4 (with Web Office Portal). An attacker with network access to the web server on port 80/TCP or 443/TCP could execute system commands with administrative privileges. The security vulnerability could be exploited by an unauthenticated attacker with network access to the affected service. No user interaction is required to exploit this security vulnerability. Successful exploitation of the security vulnerability compromises confidentiality, integrity or availability of the targeted system. At the time of advisory publication no public exploitation of this security vulnerability was known.
Severity
No CVSS data available.
CWE
  • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
Impacted products
Vendor Product Version
Siemens AG Spectrum Power™ 4 Affected: with Web Office Portal
Create a notification for this product.
Show details on NVD website

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CVE-2019-6552 (GCVE-0-2019-6552)

Vulnerability from cvelistv5 – Published: 2019-04-05 18:02 – Updated: 2024-08-04 20:23
VLAI
Summary
Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple command injection vulnerabilities, caused by a lack of proper validation of user-supplied data, may allow remote code execution.
Severity
No CVSS data available.
CWE
  • CWE-77 - IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN A COMMAND ('COMMAND INJECTION') CWE-77
Assigner
References
Impacted products
Vendor Product Version
Advantech WebAccess/SCADA Affected: Versions 8.3.5 and prior.
Create a notification for this product.
Date Public
2019-04-02 00:00
Show details on NVD website

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                  "value": "IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN A COMMAND (\u0027COMMAND INJECTION\u0027) CWE-77"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://ics-cert.us-cert.gov/advisories/ICSA-19-092-01",
              "refsource": "MISC",
              "url": "https://ics-cert.us-cert.gov/advisories/ICSA-19-092-01"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2019-6552",
    "datePublished": "2019-04-05T18:02:39.000Z",
    "dateReserved": "2019-01-22T00:00:00.000Z",
    "dateUpdated": "2024-08-04T20:23:22.066Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Mitigation
Architecture and Design

If at all possible, use library calls rather than external processes to recreate the desired functionality.

Mitigation
Implementation

If possible, ensure that all external commands called from the program are statically created.

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.
Mitigation
Operation

Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.

Mitigation
System Configuration

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.