Adress CVE-2017-6410 in devel/kf5-kio and x11/kdelibs4

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.

Reviewed by:	mat, rakuco
Approved by:	rakuco (mentor), mat (mentor)
Obtained from:	https://marc.info/?l=kde-announce&m=148831226706885&w=2
MFH:		2017Q1
Security:	CVE-2017-6410
Differential Revision:	https://reviews.freebsd.org/D9908

devel/kf5-kio/Makefile

@@ -3,6 +3,7 @@
 
 PORTNAME=	kio
 PORTVERSION=	${KDE_FRAMEWORKS_VERSION}
+PORTREVISION=	1
 CATEGORIES=	devel kde kde-frameworks
 
 MAINTAINER=	kde@FreeBSD.org

devel/kf5-kio/files/patch-git_f9d0cb4_cve-2017-6410

@@ -0,0 +1,43 @@
+From f9d0cb47cf94e209f6171ac0e8d774e68156a6e4 Mon Sep 17 00:00:00 2001
+From: Albert Astals Cid <aacid@kde.org>
+Date: Tue, 28 Feb 2017 19:00:48 +0100
+Subject: [PATCH] Sanitize URLs before passing them to FindProxyForURL
+
+Remove user/password information
+For https: remove path and query
+
+Thanks to safebreach.com for reporting the problem
+
+CCMAIL: yoni.fridburg@safebreach.com
+CCMAIL: amit.klein@safebreach.com
+CCMAIL: itzik.kotler@safebreach.com
+---
+ src/kpac/script.cpp | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/src/kpac/script.cpp b/src/kpac/script.cpp
+index a0235f73..2485c54d 100644
+--- src/kpac/script.cpp
++++ src/kpac/script.cpp
+@@ -754,9 +754,16 @@ QString Script::evaluate(const QUrl &url)
+         }
+     }
+
++    QUrl cleanUrl = url;
++    cleanUrl.setUserInfo(QString());
++    if (cleanUrl.scheme() == QLatin1String("https")) {
++        cleanUrl.setPath(QString());
++        cleanUrl.setQuery(QString());
++    }
++
+     QScriptValueList args;
+-    args << url.url();
+-    args << url.host();
++    args << cleanUrl.url();
++    args << cleanUrl.host();
+
+     QScriptValue result = func.call(QScriptValue(), args);
+     if (result.isError()) {
+--
+2.11.1
+

x11/kdelibs4/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	kdelibs
 PORTVERSION=	${KDE4_KDELIBS_VERSION}
-PORTREVISION=	9
+PORTREVISION=	10
 CATEGORIES=	x11 kde
 MASTER_SITES=   KDE/${KDE4_APPLICATIONS_BRANCH}/applications/${KDE4_APPLICATIONS_VERSION}/src
 DIST_SUBDIR=	KDE/${PORTVERSION}

x11/kdelibs4/files/patch-git_1804c2f_cve-2017-6410

@@ -0,0 +1,39 @@
+From 1804c2fde7bf4e432c6cf5bb8cce5701c7010559 Mon Sep 17 00:00:00 2001
+From: Albert Astals Cid <aacid@kde.org>
+Date: Tue, 28 Feb 2017 19:08:50 +0100
+Subject: [PATCH] Sanitize URLs before passing them to FindProxyForURL
+
+Remove user/password information
+For https: remove path and query
+
+Backport from kio f9d0cb47cf94e209f6171ac0e8d774e68156a6e4
+---
+ kio/misc/kpac/script.cpp | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/kio/misc/kpac/script.cpp b/kio/misc/kpac/script.cpp
+index a595301307..9ab360a0b5 100644
+--- kio/misc/kpac/script.cpp
++++ kio/misc/kpac/script.cpp
+@@ -754,9 +754,16 @@ namespace KPAC
+             }
+         }
+
++        KUrl cleanUrl = url;
++        cleanUrl.setUserInfo(QString());
++        if (cleanUrl.scheme().toLower() == QLatin1String("https")) {
++            cleanUrl.setPath(QString());
++            cleanUrl.setQuery(QString());
++        }
++
+         QScriptValueList args;
+-        args << url.url();
+-        args << url.host();
++        args << cleanUrl.url();
++        args << cleanUrl.host();
+
+         QScriptValue result = func.call(QScriptValue(), args);
+         if (result.isError()) {
+--
+2.11.1
+