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bh=j4oAbYct1l9t6g9PwqcePOZrHlz9FGf3N1fChZQN2iQ=; b=YfVS7kR4jMTqjNVO7VONXongMHjTxto1CeSrMPso2pXIiUlSQORkiDXwbXceUgjCcWEuel Easl9WhQ5bF+Nn+TTkYKGmINUsW7LYsa7Tp9I2kPyrFesHAh4xwUe+9VjkvLfE6O16Q0SY yC6vXMbtF2wA9QpxS8qySHmt8RY7DtE= X-MC-Unique: 7F5JR5IGN_Oa_D31ylMIGQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Markus Armbruster , Michael Roth , Konstantin Kostiuk , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH 12/14] qga: mark guest-exec-* commands with 'unrestricted' flag Date: Tue, 4 Jun 2024 16:32:40 +0100 Message-ID: <20240604153242.251334-13-berrange@redhat.com> In-Reply-To: <20240604153242.251334-1-berrange@redhat.com> References: <20240604153242.251334-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717515298733100011 This blocks use of all the 'guest-exec-*' commands unless the QGA is run with the --unrestricted command line argument. These commands allow the host admin to execute arbitrary programs and so directly compromise the guest OS. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/qapi-schema.json | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 2f80d89536..a4f8653446 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -1454,11 +1454,17 @@ # # Returns: GuestExecStatus # +# Features: +# +# @unrestricted: not permitted if agent disables unrestricted +# resource access mode +# # Since: 2.5 ## { 'command': 'guest-exec-status', 'data': { 'pid': 'int' }, - 'returns': 'GuestExecStatus' } + 'returns': 'GuestExecStatus', + 'features': [ 'unrestricted' ] } =20 ## # @GuestExec: @@ -1527,12 +1533,18 @@ # # Returns: PID # +# Features: +# +# @unrestricted: not permitted if agent disables unrestricted +# resource access mode +# # Since: 2.5 ## { 'command': 'guest-exec', 'data': { 'path': 'str', '*arg': ['str'], '*env': ['str'], '*input-data': 'str', '*capture-output': 'GuestExecCaptureO= utput' }, - 'returns': 'GuestExec' } + 'returns': 'GuestExec', + 'features': [ 'unrestricted' ] } =20 =20 ## --=20 2.45.1