Huawei EulerOS: Security Advisory for docker-engine (EulerOS-SA-2022-1886)

# SPDX-FileCopyrightText: 2022 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.2.2022.1886");
  script_cve_id("CVE-2020-15157", "CVE-2020-15257", "CVE-2021-32760", "CVE-2021-41103", "CVE-2022-24769");
  script_tag(name:"creation_date", value:"2022-06-17 04:18:31 +0000 (Fri, 17 Jun 2022)");
  script_version("2024-02-05T14:36:57+0000");
  script_tag(name:"last_modification", value:"2024-02-05 14:36:57 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-10-14 19:38:38 +0000 (Thu, 14 Oct 2021)");

  script_name("Huawei EulerOS: Security Advisory for docker-engine (EulerOS-SA-2022-1886)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROS\-2\.0SP5");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2022-1886");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2022-1886");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'docker-engine' package(s) announced via the EulerOS-SA-2022-1886 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"containerd is a container runtime.A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host's filesystem.Changes to file permissions can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky.This bug does not directly allow files to be read, modified, or executed without an additional cooperating process.This bug has been fixed in containerd 1.5.4 and 1.4.8.As a workaround, ensure that users only pull images from trusted sources.Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially affected by this bug through policies and profiles that prevent containerd from interacting with specific files.(CVE-2021-32760)

containerd is an industry-standard container runtime and is available as a daemon for Linux and Windows.In containerd before versions 1.3.9 and 1.4.3, the containerd-shim API is improperly exposed to host network containers.Access controls for the shim's API socket verified that the connecting process had an effective UID of 0, but did not otherwise restrict access to the abstract Unix domain socket.This would allow malicious containers running in the same network namespace as the shim, with an effective UID of 0 but otherwise reduced privileges, to cause new processes to be run with elevated privileges.This vulnerability has been fixed in containerd 1.3.9 and 1.4.3.Users should update to these versions as soon as they are released.It should be noted that containers started with an old version of containerd-shim should be stopped and restarted, as running containers will continue to be vulnerable even after an upgrade.If you are not providing the ability for untrusted users to start containers in the same network namespace as the shim (typically the 'host' network namespace, for example with docker run --net=host or hostNetwork: true in a Kubernetes pod) and run with an effective UID of 0, you are not vulnerable to this issue.If you are running containers with a vulnerable configuration, you can deny access to all abstract sockets with AppArmor by adding a line similar to deny unix addr=@**, to your policy.It is best practice to run containers with a reduced set of privileges, with a non-zero UID, and with isolated namespaces.The containerd maintainers strongly advise against sharing namespaces with the host.Reducing the set of isolation mechanisms used for a container necessarily increases that container's privilege, regardless of what container runtime is used for running that container.(CVE-2020-15257)

containerd is an open source container runtime with an emphasis on simplicity, robustness and portability.A bug was found in containerd where container root directories and some plugins had insufficiently restricted ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'docker-engine' package(s) on Huawei EulerOS V2.0SP5.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "EULEROS-2.0SP5") {

  if(!isnull(res = isrpmvuln(pkg:"docker-engine", rpm:"docker-engine~18.09.0.101~1.h52.22.9.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"docker-engine-selinux", rpm:"docker-engine-selinux~18.09.0.101~1.h52.22.9.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);