Huawei EulerOS: Security Advisory for openssh (EulerOS-SA-2023-1059)

# SPDX-FileCopyrightText: 2023 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("1.3.6.1.4.1.25623.1.1.2.2023.1059");
  script_cve_id("CVE-2021-41617");
  script_tag(name:"creation_date", value:"2023-01-09 15:11:01 +0000 (Mon, 09 Jan 2023)");
  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:"4.4");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/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:"2021-10-07 14:46:16 +0000 (Thu, 07 Oct 2021)");

  script_name("Huawei EulerOS: Security Advisory for openssh (EulerOS-SA-2023-1059)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2023 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=EULEROSVIRT\-3\.0\.2\.6");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2023-1059");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2023-1059");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'openssh' package(s) announced via the EulerOS-SA-2023-1059 advisory.");

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

  script_tag(name:"insight", value:"sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.(CVE-2021-41617)");

  script_tag(name:"affected", value:"'openssh' package(s) on Huawei EulerOS Virtualization 3.0.2.6.");

  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 == "EULEROSVIRT-3.0.2.6") {

  if(!isnull(res = isrpmvuln(pkg:"openssh", rpm:"openssh~7.4p1~16.h25.eulerosv2r7", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-clients", rpm:"openssh-clients~7.4p1~16.h25.eulerosv2r7", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-keycat", rpm:"openssh-keycat~7.4p1~16.h25.eulerosv2r7", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"openssh-server", rpm:"openssh-server~7.4p1~16.h25.eulerosv2r7", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"pam_ssh_agent_auth", rpm:"pam_ssh_agent_auth~0.10.3~2.16.h25.eulerosv2r7", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

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

exit(0);