Bug 611256 – <kde-frameworks/kio-5.32: Information Leak when accessing https when using a malicious PAC file

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Johannes Huber (RETIRED) 2017-02-28 20:29:20 UTC]

Using a malicious PAC file, and then using exfiltration methods in the PAC
function FindProxyForURL() enables the attacker to expose full https URLs.

This is a security issue since https URLs may contain sensitive
information in the URL authentication part (user:password@host), and in the
path and the query (e.g. access tokens).

This attack can be carried out remotely (over the LAN) since proxy settings
allow “Detect Proxy Configuration Automatically”.
This setting uses WPAD to retrieve the PAC file, and an attacker who has access
to the victim’s LAN can interfere with the WPAD protocols (DHCP/DNS+HTTP)
and inject his/her own malicious PAC instead of the legitimate one.

https://www.kde.org/info/security/advisory-20170228-1.txt

[Comment 1 Johannes Huber (RETIRED) 2017-02-28 21:03:42 UTC]

Patch backported in =kde-frameworks/kio-5.{29,31}.0-r1

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9b4b314b09abdf8166816004850cf357eb48d904

[Comment 2 Johannes Huber (RETIRED) 2017-02-28 21:05:13 UTC]

Dear arches, please stabilize =kde-frameworks/kio-5.29.0-r1. Thanks in advance.

[Comment 3 Michael Palimaka (kensington) 2017-03-02 09:18:29 UTC]

*** Bug 610794 has been marked as a duplicate of this bug. ***

[Comment 4 Agostino Sarubbo 2017-03-02 10:31:56 UTC]

amd64 stable

[Comment 5 Agostino Sarubbo 2017-03-02 10:50:33 UTC]

x86 stable.

Maintainer(s), please cleanup.
Security, please vote.

[Comment 6 Michael Palimaka (kensington) 2017-03-02 10:57:43 UTC]

Cleanup done.

[Comment 7 Aaron Bauman (RETIRED) 2017-07-15 21:48:31 UTC]

GLSA Vote: No