Common Weakness Enumeration

CWE-93

Allowed

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

233 vulnerabilities reference this CWE, most recent first.

CVE-2019-15616 (GCVE-0-2019-15616)

Vulnerability from cvelistv5 – Published: 2020-02-04 19:08 – Updated: 2024-08-05 00:56
VLAI
Summary
Dangling remote share attempts in Nextcloud 16 allow a DNS pollution when running long.
Severity
No CVSS data available.
CWE
  • CWE-93 - CRLF Injection (CWE-93)
Assigner
hackerone CNA
References
Impacted products
Vendor Product Version
n/a Nextcloud Server Affected: 17.0.0
Show details on NVD website
To clipboard 

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CVE-2018-12537 (GCVE-0-2018-12537)

Vulnerability from cvelistv5 – Published: 2018-08-14 19:00 – Updated: 2024-08-05 08:38
VLAI
Summary
In Eclipse Vert.x version 3.0 to 3.5.1, the HttpServer response headers and HttpClient request headers do not filter carriage return and line feed characters from the header value. This allow unfiltered values to inject a new header in the client request or server response.
Severity
No CVSS data available.
CWE
  • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
eclipse CNA
References
Impacted products
Vendor Product Version
The Eclipse Foundation Eclipse Vert.x Affected: 3.0 , < unspecified (custom)
Affected: unspecified , ≤ 3.5.1 (custom)
Create a notification for this product.
Date Public
2018-06-13 00:00
Show details on NVD website
To clipboard 

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CVE-2018-12477 (GCVE-0-2018-12477)

Vulnerability from cvelistv5 – Published: 2018-10-09 13:00 – Updated: 2024-09-16 20:32
VLAI
Title
obs-service-refresh_patches can be tricked into deleting '..' or other unrelated directories
Summary
A Improper Neutralization of CRLF Sequences vulnerability in Open Build Service allows remote attackers to cause deletion of directories by tricking obs-service-refresh_patches to delete them. Affected releases are openSUSE Open Build Service: versions prior to d6244245dda5367767efc989446fe4b5e4609cce.
Severity
3.5 (Low)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CWE
  • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
Impacted products
Vendor Product Version
openSUSE Open Build Service Affected: unspecified , < d6244245dda5367767efc989446fe4b5e4609cce (custom)
Create a notification for this product.
Date Public
2018-09-26 00:00
Credits
Matthias Gerstner of SUSE
Show details on NVD website
To clipboard 

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Mitigation
Implementation

Avoid using CRLF as a special sequence.

Mitigation
Implementation

Appropriately filter or quote CRLF sequences in user-controlled input.

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-81: Web Server Logs Tampering

Web Logs Tampering attacks involve an attacker injecting, deleting or otherwise tampering with the contents of web logs typically for the purposes of masking other malicious behavior. Additionally, writing malicious data to log files may target jobs, filters, reports, and other agents that process the logs in an asynchronous attack pattern. This pattern of attack is similar to "Log Injection-Tampering-Forging" except that in this case, the attack is targeting the logs of the web server and not the application.

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