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open-vm-tools: Security fix for CVE-2022-31676
Backport from 70a74758bf
Signed-off-by: Priyal Doshi <pdoshi@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
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0a7d275985
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@ -0,0 +1,39 @@
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From d16eda269413bdb04e85c242fa28db264697c45f Mon Sep 17 00:00:00 2001
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From: John Wolfe <jwolfe@vmware.com>
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Date: Sun, 21 Aug 2022 07:56:49 -0700
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Subject: [PATCH] Properly check authorization on incoming guestOps requests.
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Fix public pipe request checks. Only a SessionRequest type should
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be accepted on the public pipe.
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Upstream-Status: Backport from https://github.com/vmware/open-vm-tools/commit/70a74758bfe0042c27f15ce590fb21a2bc54d745
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CVE: CVE-2022-31676
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Signed-off-by: Priyal Doshi <pdoshi@mvista.com>
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---
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open-vm-tools/vgauth/serviceImpl/proto.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/open-vm-tools/vgauth/serviceImpl/proto.c b/open-vm-tools/vgauth/serviceImpl/proto.c
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index f097fb6..0ebaa7b 100644
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--- a/open-vm-tools/vgauth/serviceImpl/proto.c
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+++ b/open-vm-tools/vgauth/serviceImpl/proto.c
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@@ -1,5 +1,5 @@
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/*********************************************************
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- * Copyright (C) 2011-2016,2019 VMware, Inc. All rights reserved.
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+ * Copyright (C) 2011-2016,2019-2022 VMware, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published
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@@ -1202,6 +1202,10 @@ Proto_SecurityCheckRequest(ServiceConnection *conn,
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VGAuthError err;
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gboolean isSecure = ServiceNetworkIsConnectionPrivateSuperUser(conn);
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+ if (conn->isPublic && req->reqType != PROTO_REQUEST_SESSION_REQ) {
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+ return VGAUTH_E_PERMISSION_DENIED;
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+ }
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+
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switch (req->reqType) {
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/*
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* This comes over the public connection; alwsys let it through.
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--
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2.7.4
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@ -43,6 +43,7 @@ SRC_URI = "git://github.com/vmware/open-vm-tools.git;protocol=https;branch=maste
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file://0002-hgfsServerLinux-Consider-64bit-time_t-possibility.patch;patchdir=.. \
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file://0001-utilBacktrace-Ignore-Warray-bounds.patch;patchdir=.. \
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file://0001-hgfsmounter-Makefile.am-support-usrmerge.patch;patchdir=.. \
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file://0001-Properly-check-authorization-on-incoming-guestOps-re.patch;patchdir=.. \
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"
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SRCREV = "d3edfd142a81096f9f58aff17d84219b457f4987"
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