CVE-2016-6287 Information

Description

The \http-client\ egg always used a HTTP_PROXY environment variable to determine whether HTTP traffic should be routed via a proxy even when running as a CGI process. Under several web servers this would mean a user-supplied \Proxy\ header could allow an attacker to direct all HTTP requests through a proxy (also known as a \httpoxy\ attack). This affects all versions of http-client before 0.10.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://lists.gnu.org/archive/html/chicken-announce/2016-07/msg00000.html http://www.securityfocus.com/bid/92105

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5