Web Cache Poisoning

Overview rack is a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between the so-called middleware into a singl...

Web Cache Poisoning

Amendment This was deemed not a vulnerability. Overview tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. Affected versions of this package are vulnerable to Web Cache Poisoning. The root cause of this vulnerability was determined to by a...

Web Cache Poisoning

Overview Affected versions of this package are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon ;, they can cause a difference in the interpretation of the request between the proxy running with defaul...

Reddit: Image queue default key of 'None' and GraphQL unhandled type exception

Summary: I started testing for unrestricted file uploads and quickly discovered a way to upload a corrupted file into Reddit. I was able to bypass the MIME type of uploaded files first by uploading a normal PNG file to Reddit, intercepting the request with burp, and changing the content type from...

Security Bulletin: IBM Cloud Private is vulnerable to a Netty vulnerability (CVE-2020-7238)

Summary IBM Cloud Private is vulnerable to a Netty vulnerability Vulnerability Details CVEID: CVE-2020-7238 DESCRIPTION: Netty is vulnerable to HTTP request smuggling, caused by a flaw when handling Transfer-Encoding whitespace and a later Content-Length header. By sending a specially-crafted...

Design/Logic Flaw

A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS...

CVE-2020-10687

A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS...

CVE-2020-10687

A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Microsoft

Awesome Web Security 🐶 Curated list of Web Security materials and resources. Needless to say, most websites suffer from various types of bugs which may eventually lead to vulnerabilities. Why would this happen so often? There can be many factors involved including misconfiguration, shortage of...

HTTP Request Smuggling

wildfly-undertow is vulnerable to HTTP request smuggling. The vulnerability exists against HTTP/1.x and HTTP/2 due to an incomplete fix for CVE-2017-2666, permitting invalid characters in an HTTP request. An attacker is able to poison a web-cache, perform an XSS attack, or obtain sensitive...

Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests

A flaw was discovered in Undertow where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from...

Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests

A flaw was discovered in Undertow where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from...

Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests

A flaw was discovered in Undertow where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from...

Black Hat Presentation - Web Cache Entanglement

Overview Akamai is aware of the 'Web Cache Entanglement: Novel Pathways to Poisoning' presentation at BlackHat on August 5, 2020. Two security vulnerabilities related to our content delivery networks' caching functionality were presented as part of this research. Akamai would like to thank James...

Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests

A flaw was discovered in Undertow where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from...

GSA Bounty: Denial of service via cache poisoning on https://www.data.gov/

An attacker can persistently block access to any on https://www.data.gov/ by using cache poisoning with the h0st headers to cause 502 response code。 To replicate: load https://www.data.gov/ in your browser. look the burp , add ?xyzxyz=1 as cache buster , and add h0st headers h0st: wrtqvavjigwdvoq...

Security Bulletin: [All] Apache Tomcat (core only) (Publicly disclosed vulnerability) CVE-2020-1935, CVE-2019-17569

Summary In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a...

Security Bulletin: Vulnerabilities in Netty affect IBM Netcool Agile Service Manager (CVE-2020-7238)

Summary Vulnerabilities in Netty used by IBM Netcool Agile Service Manager have been identified. Netcool Agile Service Manager has addressed the CVE. Vulnerability Details CVEID: CVE-2020-7238 DESCRIPTION: Netty is vulnerable to HTTP request smuggling, caused by a flaw when handling...

CVE-2019-19326

Silverstripe CMS sites through 4.4.4 which have opted into HTTP Cache Headers on responses served by the framework's HTTP layer can be vulnerable to web cache poisoning. Through modifying the X-Original-Url and X-HTTP-Method-Override headers, responses with malicious HTTP headers can return...

CVE-2019-19326

Silverstripe CMS sites through 4.4.4 which have opted into HTTP Cache Headers on responses served by the framework's HTTP layer can be vulnerable to web cache poisoning. Through modifying the X-Original-Url and X-HTTP-Method-Override headers, responses with malicious HTTP headers can return...