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CVE-2016-1000111

Medium

Description

Twisted before 16.3.1 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.

SeverityMedium
CVSS5.3
Exploit probability—
ProductTwisted
PublishedMar 11, 2020
First seenMar 11, 2020

How to fix

Update
  • twisted twisted16.3.1 or later
  • twisted16.3.1 or later

Affected products

ProductAffected versionsFixed in
twisted twistedv < 16.3.116.3.1
twistedPyPIv < 16.3.116.3.1

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