PYSEC-2019-66

Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end serve...

HTTP Request Smuggling: Content-Length Sent Twice in Waitress

Impact Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. So a request with: Content-Length: 10 Content-Length: 10 would get transformed to: Content-Length: 10, 10 Whic...

GHSA-4PPP-GPCR-7QF6 HTTP Request Smuggling: Content-Length Sent Twice in Waitress

Impact Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. So a request with: Content-Length: 10 Content-Length: 10 would get transformed to: Content-Length: 10, 10 Whic...

HTTP Request Smuggling: Invalid Transfer-Encoding in Waitress

Impact Waitress would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with the inner-most...

GHSA-G2XC-35JW-C63P HTTP Request Smuggling: Invalid Transfer-Encoding in Waitress

Impact Waitress would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with the inner-most...

GHSA-PG36-WPM5-G57P HTTP Request Smuggling: LF vs CRLF handling in Waitress

Impact Waitress implemented a "MAY" part of the RFC7230 https://tools.ietf.org/html/rfc7230section-3.5 which states: Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR...

HTTP Request Smuggling: LF vs CRLF handling in Waitress

Impact Waitress implemented a "MAY" part of the RFC7230 https://tools.ietf.org/html/rfc7230section-3.5 which states: Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR...

CVE-2019-16785

Summary: The vulnerability CVE-2019-16785 affects Waitress (Python WSGI server) up to v1.3.1. It relates to RFC7230’s line-termination rule: Waitress may treat messages inconsistently when a proxy uses LF vs CRLF, enabling HTTP request smuggling/splitting. Impact is the front-end and back-end par...

CVE-2019-16785

Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end serve...

CVE-2019-16785

Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end serve...

CVE-2019-16785 HTTP Request Smuggling: LF vs CRLF handling in Waitress

Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end serve...

CVE-2019-16786 HTTP Request Smuggling: Invalid Transfer-Encoding in Waitress

Waitress through version 1.3.1 would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with t...

Security Bulletin: IBM Transparent Cloud Tiering is affected by Netty vulnerability

Summary The Netty library is vulnerable affecting the IBM Transparent Cloud Tiering. IBM Transparent Cloud Tiering fixed the below CVE. Vulnerability Details CVEID: CVE-2019-16869 DESCRIPTION: Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers such as a...

CVE-2019-16786: Inconsistent Interpretation of HTTP Requests

Waitress through version 1.3.1 would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with t...

CVE-2019-16785: Inconsistent Interpretation of HTTP Requests

Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end serve...

PT-2019-6233 · Waitress +3 · Waitress +3

Name of the Vulnerable Software and Affected Versions: Waitress versions 1.3.1 and earlier Description: The issue is related to the incorrect handling of repeated Content-Length headers in Waitress, allowing request smuggling. If two Content-Length headers are sent in a single request, Waitress...

PT-2019-6231 · Waitress +3 · Waitress +3

Name of the Vulnerable Software and Affected Versions: Waitress versions 1.3.1 and earlier Description: The issue arises from Waitress implementing a "MAY" part of the RFC7230, which allows recognizing a single LF as a line terminator and ignoring any preceding CR. This can lead to a potential fo...

[SECURITY] [DLA 2028-1] squid3 security update

Package : squid3 Version : 3.4.8-6+deb8u9 CVE ID : CVE-2019-12526 CVE-2019-18677 CVE-2019-18678 CVE-2019-18679 It was found that Squid, a high-performance proxy caching server for web clients, has been affected by the following security vulnerabilities. CVE-2019-12526 URN response handling in Squ...

NGINX -- HTTP request smuggling

NGINX Team reports: NGINX before 1.17.7, with certain errorpage configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer...

EulerOS 2.0 SP5 : golang (EulerOS-SA-2019-2529)

According to the versions of the golang packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - Go before 1.12.10 and 1.13.x before 1.13.1 allow HTTP Request Smuggling.CVE-2019-16276 - Go before 1.12.11 and 1.3.x before 1.13.2 can panic upo...