CVE-2022-31676: VMware Tools (12.0.0, 11.x.y and 10.x.y) contains a local privilege escalation vulnerability. A malicious actor with local non-administrative access to the Guest OS can escalate privileges as a root user in the virtual machine.
Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-31676 Patch from: https://github.com/vmware/open-vm-tools/commit/70a74758bfe0042c27f15ce590fb21a2bc54d745 Signed-off-by: Yi Zhao <[email protected]> --- ...uthorization-on-incoming-guestOps-re.patch | 43 +++++++++++++++++++ .../open-vm-tools/open-vm-tools_11.3.5.bb | 1 + 2 files changed, 44 insertions(+) create mode 100644 meta-networking/recipes-support/open-vm-tools/open-vm-tools/0001-Properly-check-authorization-on-incoming-guestOps-re.patch diff --git a/meta-networking/recipes-support/open-vm-tools/open-vm-tools/0001-Properly-check-authorization-on-incoming-guestOps-re.patch b/meta-networking/recipes-support/open-vm-tools/open-vm-tools/0001-Properly-check-authorization-on-incoming-guestOps-re.patch new file mode 100644 index 000000000..4140c46d0 --- /dev/null +++ b/meta-networking/recipes-support/open-vm-tools/open-vm-tools/0001-Properly-check-authorization-on-incoming-guestOps-re.patch @@ -0,0 +1,43 @@ +From 70a74758bfe0042c27f15ce590fb21a2bc54d745 Mon Sep 17 00:00:00 2001 +From: John Wolfe <[email protected]> +Date: Sun, 21 Aug 2022 07:56:49 -0700 +Subject: [PATCH] Properly check authorization on incoming guestOps requests. + +Fix public pipe request checks. Only a SessionRequest type should +be accepted on the public pipe. + +CVE: CVE-2022-31676 + +Upstream-Status: Backport +[https://github.com/vmware/open-vm-tools/commit/70a74758bfe0042c27f15ce590fb21a2bc54d745] + +Signed-off-by: Yi Zhao <[email protected]> +--- + open-vm-tools/vgauth/serviceImpl/proto.c | 6 +++++- + 1 file changed, 5 insertions(+), 1 deletion(-) + +diff --git a/open-vm-tools/vgauth/serviceImpl/proto.c b/open-vm-tools/vgauth/serviceImpl/proto.c +index db7159ee..6c672601 100644 +--- a/open-vm-tools/vgauth/serviceImpl/proto.c ++++ b/open-vm-tools/vgauth/serviceImpl/proto.c +@@ -1,5 +1,5 @@ + /********************************************************* +- * Copyright (C) 2011-2016,2019-2021 VMware, Inc. All rights reserved. ++ * Copyright (C) 2011-2016,2019-2022 VMware, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published +@@ -1201,6 +1201,10 @@ Proto_SecurityCheckRequest(ServiceConnection *conn, + VGAuthError err; + gboolean isSecure = ServiceNetworkIsConnectionPrivateSuperUser(conn); + ++ if (conn->isPublic && req->reqType != PROTO_REQUEST_SESSION_REQ) { ++ return VGAUTH_E_PERMISSION_DENIED; ++ } ++ + switch (req->reqType) { + /* + * This comes over the public connection; alwsys let it through. +-- +2.25.1 + diff --git a/meta-networking/recipes-support/open-vm-tools/open-vm-tools_11.3.5.bb b/meta-networking/recipes-support/open-vm-tools/open-vm-tools_11.3.5.bb index 1c3545f96..4670a85a6 100644 --- a/meta-networking/recipes-support/open-vm-tools/open-vm-tools_11.3.5.bb +++ b/meta-networking/recipes-support/open-vm-tools/open-vm-tools_11.3.5.bb @@ -44,6 +44,7 @@ SRC_URI = "git://github.com/vmware/open-vm-tools.git;protocol=https;branch=maste file://0001-Make-HgfsConvertFromNtTimeNsec-aware-of-64-bit-time_.patch;patchdir=.. \ file://0002-hgfsServerLinux-Consider-64bit-time_t-possibility.patch;patchdir=.. \ file://0001-open-vm-tools-Correct-include-path-for-poll.h.patch;patchdir=.. \ + file://0001-Properly-check-authorization-on-incoming-guestOps-re.patch;patchdir=.. \ " UPSTREAM_CHECK_GITTAGREGEX = "stable-(?P<pver>\d+(\.\d+)+)" -- 2.25.1
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