Huawei EulerOS: Security Advisory for docker-engine (EulerOS-SA-2022-1926)

# 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("1.3.6.1.4.1.25623.1.1.2.2022.1926");
  script_cve_id("CVE-2020-15157", "CVE-2021-32760", "CVE-2021-41103", "CVE-2022-24769");
  script_tag(name:"creation_date", value:"2022-06-22 12:15:28 +0000 (Wed, 22 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-2022-1926)");
  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\.0SP8");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2022-1926");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2022-1926");

  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-2022-1926 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 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 permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs.When containers included executable programs with extended permission bits (such as setuid), unprivileged Linux users could discover and execute those programs.When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files.This vulnerability has been fixed in containerd 1.4.11 and containerd 1.5.7.Users should update to these version when they are released and may restart containers or update directory permissions to mitigate the vulnerability.Users unable to update should limit access to the host to trusted users.Update directory permission on container bundles directories.(CVE-2021-41103)

Moby is an open-source project created by Docker to enable and accelerate software containerization.A bug was found in Moby (Docker Engine) prior to version 20.10.14 where containers were incorrectly started with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during `execve(2)`.Normally, when executable programs have specified permitted file capabilities, otherwise unprivileged users and processes can execute those programs and gain the specified file capabilities up to the bounding set.Due to this bug, containers which included executable programs with inheritable file capabilities allowed otherwise unprivileged users and processes to additionally gain these inheritable file capabilities up to the container's bounding set.Containers which use Linux users and groups to perform privilege separation inside the container are most directly impacted.This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set.This bug has been fixed in Moby (Docker Engine) 20.10.14.Running containers should be stopped, deleted, and recreated for the inheritable capabilities to be reset.This fix changes Moby (Docker Engine) behavior such that containers are started with a more typical Linux environment.As a workaround, the entry point of a container can be modified to use a utility like `capsh(1)` to drop inheritable capabilities prior to the primary process starting.(CVE-2022-24769)

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 ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'docker-engine' package(s) on Huawei EulerOS V2.0SP8.");

  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-2.0SP8") {

  if(!isnull(res = isrpmvuln(pkg:"docker-engine", rpm:"docker-engine~18.09.0.101~1.h52.22.10.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"docker-engine-selinux", rpm:"docker-engine-selinux~18.09.0.101~1.h52.22.10.eulerosv2r8", rls:"EULEROS-2.0SP8"))) {
    report += res;
  }

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

exit(0);