HTTP Request Smuggling Affecting meinheld package, versions [,1.0.2)
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Test your applications- Snyk ID SNYK-PYTHON-MEINHELD-569140
- published 21 May 2020
- disclosed 17 May 2020
- credit Sam Sanoop of Snyk Security Team
Introduced: 17 May 2020
CVE-2020-7658 Open this link in a new tabHow to fix?
Upgrade meinheld to version 1.0.2 or higher.
Overview
meinheld is a High performance asynchronous Python WSGI Web Server
Affected versions of this package are vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing.
It is possible conduct HTTP request smuggling attacks by sending the Content-Length header twice. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own. Furthermore, invalid Transfer Encoding headers were found to be parsed as valid which could be leveraged for CL:TE or TE:CL smuggling attacks.