CVE-2005-2089: microsoft internet_information_services HTTP Request/Response Smuggling

Vulnerability summary

CVE-2005-2089 is a medium (CVSS 4.3) HTTP Request/Response Smuggling vulnerability in microsoft internet_information_services. EPSS estimates a 30.97% chance of exploitation in the next 30 days, higher than 98.2% of scored vulnerabilities.

Timeline

1. 30-06-2005
   PublishedVulnerability first disclosed.
2. 07-08-2024
   Last modifiedVulnerability information updated.

Description

Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes IIS to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."

• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.