From e095bbfa939a9ec61d4448a6f16370dd656dd30a Mon Sep 17 00:00:00 2001 From: Chad Smith Date: Tue, 24 Jun 2025 09:12:52 -0600 Subject: [PATCH 2/2] fix: strict disable in ds-identify on no datasources found RH-Author: Ani Sinha RH-MergeRequest: 163: CVE-2024-6174: fix: Don't attempt to identify non-x86 OpenStack instances RH-Jira: RHEL-100606 RH-Acked-by: xiachen RH-Commit: [2/2] 01f55ab3c476a47ca2f2d2ace4b81b9a8a17e5d9 Take the CVE-2024-6174 strict detection fix one step further. Commit 8c3ae1b took a step to ignore DS_MAYBE datasource discovery. But, if no datasources are met the DS_FOUND conditions, ds-identify was still leaving cloud-init enabled. This resulted in cloud-init python code attempting to discover all datasources later in boot based on the default datasource_list. ds-identify will now assert that at least one datasource is found. If no datasources, ds-identify will exit 1 which disables cloud-init boot stages and results in no boot configuration operations from cloud-init. OpenStack images which cannot identify a valid datasource with DMI-data or kernel command line ci.ds=OpenStack parameter will need to either: - provide image-based configuration in either /etc/cloud/cloud.cfg.* to set datasource_list: [ OpenStack ] - provide --config-drive true to openstack server create - attach a nocloud disk labelled CIDATA containing user-data and meta-data files CVE-2024-6174 LP: #2069607 (cherry picked from commit e3f42adc2674a38fb29e414cfbf96f884934b2d2) Signed-off-by: Ani Sinha --- tests/unittests/test_ds_identify.py | 6 ++++-- tools/ds-identify | 2 +- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/tests/unittests/test_ds_identify.py b/tests/unittests/test_ds_identify.py index c4f0115a8..3c8976167 100644 --- a/tests/unittests/test_ds_identify.py +++ b/tests/unittests/test_ds_identify.py @@ -60,7 +60,7 @@ BLKID_UEFI_UBUNTU = [ POLICY_FOUND_ONLY = "search,found=all,maybe=none,notfound=disabled" POLICY_FOUND_OR_MAYBE = "search,found=all,maybe=none,notfound=disabled" DI_DEFAULT_POLICY = "search,found=all,maybe=none,notfound=disabled" -DI_DEFAULT_POLICY_NO_DMI = "search,found=all,maybe=none,notfound=enabled" +DI_DEFAULT_POLICY_NO_DMI = "search,found=all,maybe=none,notfound=disabled" DI_EC2_STRICT_ID_DEFAULT = "true" OVF_MATCH_STRING = "http://schemas.dmtf.org/ovf/environment/1" @@ -584,7 +584,7 @@ class TestDsIdentify(DsIdentifyBase): data.update( { "policy_dmi": POLICY_FOUND_OR_MAYBE, - "policy_no_dmi": POLICY_FOUND_OR_MAYBE, + "policy_no_dmi": DI_DEFAULT_POLICY_NO_DMI, } ) @@ -597,6 +597,8 @@ class TestDsIdentify(DsIdentifyBase): (_, _, err, _, _) = self._check_via_dict(data, RC_NOT_FOUND) self.assertIn("check for 'OpenStack' returned maybe", err) self.assertIn("No ds found", err) + self.assertIn("Disabled cloud-init", err) + self.assertIn("returning 1", err) def test_default_ovf_is_found(self): """OVF is identified found when ovf/ovf-env.xml seed file exists.""" diff --git a/tools/ds-identify b/tools/ds-identify index 87b320f56..a293ecf3e 100755 --- a/tools/ds-identify +++ b/tools/ds-identify @@ -95,7 +95,7 @@ DI_MAIN=${DI_MAIN:-main} DI_BLKID_EXPORT_OUT="" DI_GEOM_LABEL_STATUS_OUT="" DI_DEFAULT_POLICY="search,found=all,maybe=none,notfound=${DI_DISABLED}" -DI_DEFAULT_POLICY_NO_DMI="search,found=all,maybe=none,notfound=${DI_ENABLED}" +DI_DEFAULT_POLICY_NO_DMI="search,found=all,maybe=none,notfound=${DI_DISABLED}" DI_DMI_BOARD_NAME="" DI_DMI_CHASSIS_ASSET_TAG="" DI_DMI_PRODUCT_NAME="" -- 2.39.3