The vulnerability of the server software HAProxy, related to the rerouting of empty Content-Length headers, allows a hacker to perform a “HTTP request hijacking” attack.

The vulnerability of the server software HAProxy relates to the rerouting of empty headers called Content-Length. Exploiting this vulnerability allows a malicious actor to carry out an “HTTP request hijacking” attack...

BIT-TOMCAT-2022-42252 Apache Tomcat request smuggling via malformed content-length

If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0 to 9.0.67, 10.0.0 to 10.0.26 or 10.1.0 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false the default for 8.5.x only, Tomcat did not reject a request containing an invalid Content-Length header making a request...

haproxy: Proxy forwards malformed empty Content-Length headers

A flaw was found in HAProxy. Empty Content-Length headers are forwarded, which could cause an HTTP/1 server behind it to interpret the payload as an extra request. This may render the HTTP/1 server vulnerable to attacks in some uncommon cases...

haproxy: Proxy forwards malformed empty Content-Length headers

A flaw was found in HAProxy. Empty Content-Length headers are forwarded, which could cause an HTTP/1 server behind it to interpret the payload as an extra request. This may render the HTTP/1 server vulnerable to attacks in some uncommon cases...

haproxy: Proxy forwards malformed empty Content-Length headers

A flaw was found in HAProxy. Empty Content-Length headers are forwarded, which could cause an HTTP/1 server behind it to interpret the payload as an extra request. This may render the HTTP/1 server vulnerable to attacks in some uncommon cases...

haproxy: Proxy forwards malformed empty Content-Length headers

A flaw was found in HAProxy. Empty Content-Length headers are forwarded, which could cause an HTTP/1 server behind it to interpret the payload as an extra request. This may render the HTTP/1 server vulnerable to attacks in some uncommon cases...

jetty: Improper validation of HTTP/1 content-length

A flaw was found in Jetty that permits a plus sign + preceding the content-length value in a HTTP/1 header field, which is non-standard and more permissive than RFC. This issue could allow an attacker to request smuggling in conjunction with a server that does not close connections after 400...

SUSE-SU-2023:4646-1 Security update for haproxy

This update for haproxy fixes the following issues: - CVE-2023-45539: Fixed misinterpretation of a pathend rule with as part of the URI component bsc1217653. - CVE-2023-40225: reject any empty content-length header value bsc1214102...

haproxy: Proxy forwards malformed empty Content-Length headers

A flaw was found in HAProxy. Empty Content-Length headers are forwarded, which could cause an HTTP/1 server behind it to interpret the payload as an extra request. This may render the HTTP/1 server vulnerable to attacks in some uncommon cases...

haproxy: Proxy forwards malformed empty Content-Length headers

A flaw was found in HAProxy. Empty Content-Length headers are forwarded, which could cause an HTTP/1 server behind it to interpret the payload as an extra request. This may render the HTTP/1 server vulnerable to attacks in some uncommon cases...

DEBIAN-CVE-2023-47641

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Affected versions of aiohttp have a security vulnerability regarding the inconsistent interpretation of the http protocol. HTTP/1.1 is a persistent protocol, if both Content-LengthCL and Transfer-EncodingTE header...

Rocky Linux 8 : varnish:6 (RLSA-2021:2988)

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:2988 advisory. - Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects...

The vulnerability of HTTP servers for Ruby/Rack applications developed with Puma allows attackers to send hidden HTTP requests (HTTP Request Smuggling attack).

The vulnerability of HTTP servers for Ruby/Rack applications developed with Puma is related to deficiencies in the processing of HTTP requests containing the Content-Length header. Exploiting this vulnerability allows a malicious actor to send hidden HTTP requests a type of HTTP Request Smuggling...

Amazon Linux 2 : tomcat (ALASTOMCAT9-2023-002)

The version of tomcat installed on the remote host is prior to 9.0.71-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2TOMCAT9-2023-002 advisory. If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore...

Important: tomcat

Issue Overview: If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false the default for 8.5.x only, Tomcat did not reject a request containing an invalid Content-Length...

Medium: haproxy2

Issue Overview: HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind...

Member Login Script 3.3 - Client-side desync Vulnerability

Title: Member Login Script 3.3 - Client-side desync Author: nu11secur1ty Vendor: https://www.phpjabbers.com/ Reference: https://portswigger.net/web-security/request-smuggling/browser/client-side-desync Description: The server appears to be vulnerable to client-side desync attacks. A POST request...

SUSE-SU-2023:3469-1 Security update for haproxy

This update for haproxy fixes the following issues: - CVE-2023-40225: Fixed request smuggling with empty content-length header value bsc1214102...

OESA-2023-1541 haproxy security update

HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones. Security Fixes: HAProxy through...

HAProxy through 2.0.32 2.1.x and 2.2.x through 2.2.30 2.3.x and 2.4.x through 2.4.23 2.5.x and 2.6.x before 2.6.15 2.7.x before 2.7.10 and 2.8.x before 2.8.2 forwards empty Content-Length headers violating RFC 9110 section 8.6. In uncommon cases an HTTP/1 server behind HAProxy may interpret the payload as an extra request.

...