Huawei EulerOS: Security Advisory for ntp (EulerOS-SA-2019-2637)

# SPDX-FileCopyrightText: 2020 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("1.3.6.1.4.1.25623.1.1.2.2019.2637");
  script_cve_id("CVE-2015-5146", "CVE-2015-7973", "CVE-2016-2517");
  script_tag(name:"creation_date", value:"2020-01-23 13:10:36 +0000 (Thu, 23 Jan 2020)");
  script_version("2024-02-05T14:36:56+0000");
  script_tag(name:"last_modification", value:"2024-02-05 14:36:56 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"cvss_base", value:"5.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-02-07 15:24:47 +0000 (Tue, 07 Feb 2017)");

  script_name("Huawei EulerOS: Security Advisory for ntp (EulerOS-SA-2019-2637)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 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\.0SP3");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2019-2637");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2019-2637");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'ntp' package(s) announced via the EulerOS-SA-2019-2637 advisory.");

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

  script_tag(name:"insight", value:"NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.(CVE-2015-7973)

NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.(CVE-2016-2517)

ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.(CVE-2015-5146)");

  script_tag(name:"affected", value:"'ntp' package(s) on Huawei EulerOS V2.0SP3.");

  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-2.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.6p5~25.0.1.h20", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntpdate", rpm:"ntpdate~4.2.6p5~25.0.1.h20", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"sntp", rpm:"sntp~4.2.6p5~25.0.1.h20", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

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

exit(0);