Mageia: Security Advisory (MGASA-2015-0152)

# 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("1.3.6.1.4.1.25623.1.1.10.2015.0152");
  script_cve_id("CVE-2015-1798", "CVE-2015-1799");
  script_tag(name:"creation_date", value:"2022-01-28 10:58:44 +0000 (Fri, 28 Jan 2022)");
  script_version("2024-02-02T05:06:09+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:09 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:A/AC:M/Au:N/C:N/I:P/A:P");

  script_name("Mageia: Security Advisory (MGASA-2015-0152)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Mageia Linux Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/mageia_linux", "ssh/login/release", re:"ssh/login/release=MAGEIA4");

  script_xref(name:"Advisory-ID", value:"MGASA-2015-0152");
  script_xref(name:"URL", value:"https://advisories.mageia.org/MGASA-2015-0152.html");
  script_xref(name:"URL", value:"https://bugs.mageia.org/show_bug.cgi?id=15646");
  script_xref(name:"URL", value:"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'ntp' package(s) announced via the MGASA-2015-0152 advisory.");

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

  script_tag(name:"insight", value:"Updated ntp packages fix security vulnerabilities:

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in
NTP before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero
length, which makes it easier for man-in-the-middle attackers to spoof packets
by omitting the MAC (CVE-2015-1798).

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in
NTP before 4.2.8p2 performs state-variable updates upon receiving certain
invalid packets, which makes it easier for man-in-the-middle attackers to
cause a denial of service (synchronization loss) by spoofing the source IP
address of a peer (CVE-2015-1799).");

  script_tag(name:"affected", value:"'ntp' package(s) on Mageia 4.");

  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 == "MAGEIA4") {

  if(!isnull(res = isrpmvuln(pkg:"ntp", rpm:"ntp~4.2.6p5~15.5.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-client", rpm:"ntp-client~4.2.6p5~15.5.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"ntp-doc", rpm:"ntp-doc~4.2.6p5~15.5.mga4", rls:"MAGEIA4"))) {
    report += res;
  }

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

exit(0);