HTTP Request Smuggling: Invalid whitespace characters in headers in Waitress

Impact If a proxy server is used in front of waitress, an invalid request may be sent by an attacker that bypasses the front-end and is parsed differently by waitress leading to a potential for HTTP request smuggling. Content-Length: 10 Transfer-Encoding: \x0bchunked For clarity: 0x0b == vertical...

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-RV95-4WXJ-6FQQ Pylons Colander Denial of Service vulnerability

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

Pylons Colander Denial of Service vulnerability

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

PYSEC-2019-167

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

PYSEC-2019-167

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

Code injection

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

UBUNTU-CVE-2017-18361

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

CVE-2017-18361

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

CVE-2017-18361

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

CVE-2017-18361

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

CVE-2017-18361

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

CVE-2017-18361

CVE-2017-18361 affects Pylons Colander up to version 1.6, where the URL validator can enter an infinite loop due to an unclosed parenthesis, causing a denial of service. The connected documents do not provide a remediation/patch version; monitor for updates from project maintainers.

CVE-2017-18361

Removed by vendor...

CVE-2017-18361: Loop with Unreachable Exit Condition

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis...

PT-2019-8300 · Pylons · Pylons Colander

Name of the Vulnerable Software and Affected Versions: Pylons Colander versions prior to 1.7 Description: The issue allows an attacker to potentially cause a denial of service via an unclosed parenthesis in the URL validator, which can lead to an infinite loop. Recommendations: For versions prior...

Timing Attacks

pylons is vulnerable to timing attacks. It is possible by comparing the time of signature comparison on signed cookies...