Weakness (CWE)
CWE-93: Improper Neutralization of CRLF Sequences
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.
How to prevent it (2 mitigations)
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Implementation
Avoid using CRLF as a special sequence.
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Implementation
Appropriately filter or quote CRLF sequences in user-controlled input.
Source: MITRE CWE-93
148 results · Clear filters · Feed
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Medium 5.3
aiohttp's ClientSession is vulnerable to CRLF injection via method
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP met…
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Medium 6.1
Improper Neutralization of CRLF Sequences in ManageEngine Desktop Central
A CRLF injection vulnerability has been found in ManageEngine Desktop Central affecting version 9.1.0. This vulnerability could allow a remote attacker to inject arbitrary HTTP headers and perform HTTP response splitting attacks via the fileName parameter in …
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Medium 6.1
Improper Neutralization of CRLF Sequences in ManageEngine Desktop Central
A CRLF injection vulnerability has been found in ManageEngine Desktop Central affecting version 9.1.0. This vulnerability could allow a remote attacker to inject arbitrary HTTP headers and perform HTTP response splitting attacks via the fileName parameter in …
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Medium 5.4
All versions of the package ithewei/libhv are vulnerable to CRLF Injection when untrusted user input is used to set req…
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Medium 5.4
All versions of the package drogonframework/drogon are vulnerable to CRLF Injection when untrusted user input is used t…
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Medium 5.7
AMI SPx contains a vulnerability in the BMC where an Attacker may cause an improper neutralization of CRLF sequences in…
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Medium 6.5
CRLF Injection in Nodejs ‘undici’ via host
Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize t…
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Medium 5.3
CRLF Injection in Nodejs ‘undici’ via Content-Type
undici is an HTTP/1.1 client, written from scratch for Node.js.`=< undici@5.8.0` users are vulnerable to _CRLF Injection_ on headers when using unsanitized input as request headers, more specifically, inside the `content-type` header. Example: ``` import { re…
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Medium 5.3
CRLF injection in request headers
undici is an HTTP/1.1 client, written from scratch for Node.js. It is possible to inject CRLF sequences into request headers in undici in versions less than 5.7.1. A fix was released in version 5.8.0. Sanitizing all HTTP headers from untrusted sources to elim…
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Medium 5.4
SMTP Command Injection in iCalendar Attachments to emails via newlines in Nextcloud Server
Nextcloud server is an open source personal cloud server. Affected versions were found to be vulnerable to SMTP command injection. The impact varies based on which commands are supported by the backend SMTP server. However, the main risk here is that the atta…
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Medium 6.3
CRLF Injection in phpservermon/phpservermon
phpservermon is vulnerable to Improper Neutralization of CRLF Sequences
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Medium 4.7
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CRLF Injection Vulnerability
A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the a…
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Medium 4.2
CRLF vulnerability in Fiber
In Fiber before version 1.12.6, the filename that is given in c.Attachment() (https://docs.gofiber.io/ctx#attachment) is not escaped, and therefore vulnerable for a CRLF injection attack. I.e. an attacker could upload a custom filename and then give the link …
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Medium 6.8
CRLF injection in httplib2
In httplib2 before version 0.18.0, an attacker controlling unescaped part of uri for `httplib2.Http.request()` could change request headers and body, send additional hidden requests to same server. This vulnerability impacts software that uses httplib2 with u…
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Medium 4.7
Cisco Umbrella Carriage Return Line Feed Injection Vulnerability
A vulnerability in the web server of Cisco Umbrella could allow an unauthenticated, remote attacker to perform a carriage return line feed (CRLF) injection attack against a user of an affected service. The vulnerability is due to insufficient validation of us…
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Medium 5.3
Headers containing newline characters can split messages in hyper
An issue was discovered in the hyper crate before 0.9.18 for Rust. It mishandles newlines in headers.
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Medium 6.1
Twisted CRLF Injection
In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.
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Medium 6.1
Improper Neutralization of CRLF Sequences in urllib3 library for Python
In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the request parameter.
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Medium 5.4
An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection …
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Medium 6.5
An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection …
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Medium 6.1
Buildbot CRLF Injection
www/resource.py in Buildbot before 1.8.1 allows CRLF injection in the Location header of /auth/login and /auth/logout via the redirect parameter. This affects other web sites in the same domain.
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Medium —CVE-2018-12537 Public exploit
Moderate severity vulnerability that affects io.vertx:vertx-core
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 s…
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Medium 6.1
Mail Gem CRLF Injection vulnerability
The mail gem before 2.5.5 for Ruby (aka A Really Ruby Mail Library) is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.
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Medium 6.5
bottle.py vulnerable to CRLF Injection
redirect() in bottle.py in bottle 0.12.10 doesn't filter a "\r\n" sequence, which leads to a CRLF attack, as demonstrated by a redirect("233\r\nSet-Cookie: name=salt") call.
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Medium 6.1
Improper Neutralization of CRLF Sequences in Wildfly Undertow
CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks vi…
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Medium 6.4
Multiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH before 7.2p2 allow remote authenticated users t…
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Medium —
Moodle CRLF Injection Vulnerability in Calendar Component
CRLF injection vulnerability in calendar/set.php in the Calendar component in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, 2.1.x before 2.1.3, and 2.2 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via …
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Medium —
Joomla! vulnerable to CRLF injection
CRLF injection vulnerability in Joomla! before 1.0.13 (aka Sunglow) allows remote attackers to inject arbitrary HTTP headers and probably conduct HTTP response splitting attacks via CRLF sequences in the url parameter. NOTE: this can be leveraged for cross-si…