CVE-2018-20060 Information

Description

urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e. a redirect that differs in host port or scheme). This can allow for credentials in the Authorization header to be exposed to unintended hosts or transmitted in cleartext.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html https://access.redhat.com/errata/RHSA-2019:2272 https://bugzilla.redhat.com/show_bug.cgi?id=1649153 https://github.com/urllib3/urllib3/blob/master/CHANGES.rst https://github.com/urllib3/urllib3/blob/master/CHANGES.rst https://github.com/urllib3/urllib3/issues/1316 https://github.com/urllib3/urllib3/issues/1316 https://github.com/urllib3/urllib3/pull/1346 https://github.com/urllib3/urllib3/pull/1346 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5SJERZEJDSUYQP7BNBXMBHRHGY26HRZD/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BXLAXHM3Z6DUCXZ7ZXZ2EAYJXWDCZFCT/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWP36YW3KSVLXDBY3QJKDYEPCIMN3VQZ/ https://usn.ubuntu.com/3990-1/ urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e. a redirect that differs in host port or scheme). This can allow for credentials in the Authorization header to be exposed to unintended hosts or transmitted in cleartext. cpe:2.3:a:python:urllib3::::::::

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8