CentOS Update for ntp CESA-2016:0063 centos7

# SPDX-FileCopyrightText: 2016 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("1.3.6.1.4.1.25623.1.0.882375");
  script_version("2023-07-12T05:05:04+0000");
  script_tag(name:"last_modification", value:"2023-07-12 05:05:04 +0000 (Wed, 12 Jul 2023)");
  script_tag(name:"creation_date", value:"2016-01-26 06:10:58 +0100 (Tue, 26 Jan 2016)");
  script_cve_id("CVE-2015-8138");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-06-08 12:15:00 +0000 (Tue, 08 Jun 2021)");
  script_tag(name:"qod_type", value:"package");
  script_name("CentOS Update for ntp CESA-2016:0063 centos7");
  script_tag(name:"summary", value:"Check the version of ntp");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"The Network Time Protocol (NTP) is used to
synchronize a computer's time with a referenced time source.

It was discovered that ntpd as a client did not correctly check the
originate timestamp in received packets. A remote attacker could use this
flaw to send a crafted packet to an ntpd client that would effectively
disable synchronization with the server, or push arbitrary offset/delay
measurements to modify the time on the client. (CVE-2015-8138)

All ntp users are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue. After installing the
update, the ntpd daemon will restart automatically.");
  script_tag(name:"affected", value:"ntp on CentOS 7");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");

  script_xref(name:"CESA", value:"2016:0063");
  script_xref(name:"URL", value:"http://lists.centos.org/pipermail/centos-announce/2016-January/021624.html");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("CentOS Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/centos", "ssh/login/rpms", re:"ssh/login/release=CentOS7");
  exit(0);
}

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

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

res = "";

if(release == "CentOS7")
{

  if ((res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.6p5~22.el7.centos.1", rls:"CentOS7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"ntpdate", rpm:"ntpdate~4.2.6p5~22.el7.centos.1", rls:"CentOS7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"ntp-doc", rpm:"ntp-doc~4.2.6p5~22.el7.centos.1", rls:"CentOS7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"ntp-perl", rpm:"ntp-perl~4.2.6p5~22.el7.centos.1", rls:"CentOS7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"sntp", rpm:"sntp~4.2.6p5~22.el7.centos.1", rls:"CentOS7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}