SUSE: Security Advisory for ntp (SUSE-SU-2016:1247-1)

# Copyright (C) 2016 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.851300");
  script_version("2021-10-14T10:01:27+0000");
  script_tag(name:"last_modification", value:"2021-10-14 10:01:27 +0000 (Thu, 14 Oct 2021)");
  script_tag(name:"creation_date", value:"2016-05-07 05:19:24 +0200 (Sat, 07 May 2016)");
  script_cve_id("CVE-2015-5300", "CVE-2015-7691", "CVE-2015-7692", "CVE-2015-7701",
                "CVE-2015-7702", "CVE-2015-7703", "CVE-2015-7704", "CVE-2015-7705",
                "CVE-2015-7848", "CVE-2015-7849", "CVE-2015-7850", "CVE-2015-7851",
                "CVE-2015-7852", "CVE-2015-7853", "CVE-2015-7854", "CVE-2015-7855",
                "CVE-2015-7871", "CVE-2015-7973", "CVE-2015-7974", "CVE-2015-7975",
                "CVE-2015-7976", "CVE-2015-7977", "CVE-2015-7978", "CVE-2015-7979",
                "CVE-2015-8138", "CVE-2015-8139", "CVE-2015-8140", "CVE-2015-8158");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-07-16 13:15:00 +0000 (Fri, 16 Jul 2021)");
  script_tag(name:"qod_type", value:"package");
  script_name("SUSE: Security Advisory for ntp (SUSE-SU-2016:1247-1)");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ntp'
  package(s) announced via the referenced advisory.");

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

  script_tag(name:"insight", value:"ntp was updated to version 4.2.8p6 to fix 28 security issues.

  Major functional changes:

  - The 'sntp' commandline tool changed its option handling in a major way,
  some options have been renamed or dropped.

  - 'controlkey 1' is added during update to ntp.conf to allow sntp to work.

  - The local clock is being disabled during update.

  - ntpd is no longer running chrooted.

  Other functional changes:

  - ntp-signd is installed.

  - 'enable mode7' can be added to the configuration to allow ntdpc to work
  as compatibility mode option.

  - 'kod' was removed from the default restrictions.

  - SHA1 keys are used by default instead of MD5 keys.

  Also yast2-ntp-client was updated to match some sntp syntax changes.
  (bsc#937837)

  These security issues were fixed:

  - CVE-2015-8158: Fixed potential infinite loop in ntpq (bsc#962966).

  - CVE-2015-8138: Zero Origin Timestamp Bypass (bsc#963002).

  - CVE-2015-7979: Off-path Denial of Service (DoS) attack on authenticated
  broadcast mode (bsc#962784).

  - CVE-2015-7978: Stack exhaustion in recursive traversal of restriction
  list (bsc#963000).

  - CVE-2015-7977: reslist NULL pointer dereference (bsc#962970).

  - CVE-2015-7976: ntpq saveconfig command allows dangerous characters in
  filenames (bsc#962802).

  - CVE-2015-7975: nextvar() missing length check (bsc#962988).

  - CVE-2015-7974: Skeleton Key: Missing key check allows impersonation
  between authenticated peers (bsc#962960).

  - CVE-2015-7973: Replay attack on authenticated broadcast mode
  (bsc#962995).

  - CVE-2015-8140: ntpq vulnerable to replay attacks (bsc#962994).

  - CVE-2015-8139: Origin Leak: ntpq and ntpdc, disclose origin (bsc#962997).

  - CVE-2015-5300: MITM attacker could have forced ntpd to make a step
  larger than the panic threshold (bsc#951629).

  - CVE-2015-7871: NAK to the Future: Symmetric association authentication
  bypass via crypto-NAK (bsc#951608).

  - CVE-2015-7855: decodenetnum() will ASSERT botch instead of returning
  FAIL on some bogus values (bsc#951608).

  - CVE-2015-7854: Password Length Memory Corruption Vulnerability
  (bsc#951608).

  - CVE-2015-7853: Invalid length data provided by a custom refclock driver
  could cause a buffer overflow (bsc#951608).

  - CVE-2015-7852: ntpq atoascii() Memory Corruption Vulnerability
  (bsc#951608).

  - CVE-2015-7851: saveconfig Directory Traversal Vulnerability (bsc#951608).

  - CVE-2015-7850: remote config logfile-keyfile (bsc#951608).

  - CVE-2015-7849: trusted key use-after-free (bsc#951608).

  - CVE-2015-7848: mode 7 loop counter underrun (bsc#951608).

  - ...

  Description truncated, please see the referenced URL(s) for more information.");

  script_tag(name:"affected", value:"ntp on SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Desktop 12");

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

  script_xref(name:"SUSE-SU", value:"2016:1247-1");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone Networks GmbH");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse", "ssh/login/rpms", re:"ssh/login/release=(SLED12\.0SP0|SLES12\.0SP0)");
  exit(0);
}

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

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

res = "";
report = "";

if(release == "SLED12.0SP0") {
  if(!isnull(res = isrpmvuln(pkg:"yast2-ntp-client", rpm:"yast2-ntp-client~3.1.12.4~8.2", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.8p6~46.5.2", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-debuginfo", rpm:"ntp-debuginfo~4.2.8p6~46.5.2", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-debugsource", rpm:"ntp-debugsource~4.2.8p6~46.5.2", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-doc", rpm:"ntp-doc~4.2.8p6~46.5.2", rls:"SLED12.0SP0"))) {
    report += res;
  }

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

if(release == "SLES12.0SP0") {
  if(!isnull(res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.8p6~46.5.2", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-debuginfo", rpm:"ntp-debuginfo~4.2.8p6~46.5.2", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-debugsource", rpm:"ntp-debugsource~4.2.8p6~46.5.2", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-doc", rpm:"ntp-doc~4.2.8p6~46.5.2", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"yast2-ntp-client", rpm:"yast2-ntp-client~3.1.12.4~8.2", rls:"SLES12.0SP0"))) {
    report += res;
  }

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

exit(0);