inets in Erlang possibly 22.1 and earlier follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
Link | Tags |
---|---|
https://httpoxy.org/ | third party advisory |
https://security-tracker.debian.org/tracker/CVE-2016-1000107 | third party advisory |
http://www.openwall.com/lists/oss-security/2016/07/18/6 | third party advisory mailing list |
https://bugs.erlang.org/browse/ERL-198 | vendor advisory issue tracking |