Debian: Security Advisory (DSA-3108-1)

# SPDX-FileCopyrightText: 2014 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("1.3.6.1.4.1.25623.1.0.703108");
  script_cve_id("CVE-2014-9293", "CVE-2014-9294", "CVE-2014-9295", "CVE-2014-9296");
  script_tag(name:"creation_date", value:"2014-12-19 23:00:00 +0000 (Fri, 19 Dec 2014)");
  script_version("2024-02-02T05:06:05+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:05 +0000 (Fri, 02 Feb 2024)");
  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_name("Debian: Security Advisory (DSA-3108-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2014 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB7");

  script_xref(name:"Advisory-ID", value:"DSA-3108-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2014/DSA-3108-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-3108");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'ntp' package(s) announced via the DSA-3108-1 advisory.");

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

  script_tag(name:"insight", value:"Several vulnerabilities were discovered in the ntp package, an implementation of the Network Time Protocol.

CVE-2014-9293

ntpd generated a weak key for its internal use, with full administrative privileges. Attackers could use this key to reconfigure ntpd (or to exploit other vulnerabilities).

CVE-2014-9294

The ntp-keygen utility generated weak MD5 keys with insufficient entropy.

CVE-2014-9295

ntpd had several buffer overflows (both on the stack and in the data section), allowing remote authenticated attackers to crash ntpd or potentially execute arbitrary code.

CVE-2014-9296

The general packet processing function in ntpd did not handle an error case correctly.

The default ntpd configuration in Debian restricts access to localhost (and possible the adjacent network in case of IPv6).

Keys explicitly generated by 'ntp-keygen -M' should be regenerated.

For the stable distribution (wheezy), these problems have been fixed in version 1:4.2.6.p5+dfsg-2+deb7u1.

We recommend that you upgrade your ntp packages.");

  script_tag(name:"affected", value:"'ntp' package(s) on Debian 7.");

  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-deb.inc");

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

res = "";
report = "";

if(release == "DEB7") {

  if(!isnull(res = isdpkgvuln(pkg:"ntp", ver:"1:4.2.6.p5+dfsg-2+deb7u1", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ntp-doc", ver:"1:4.2.6.p5+dfsg-2+deb7u1", rls:"DEB7"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"ntpdate", ver:"1:4.2.6.p5+dfsg-2+deb7u1", rls:"DEB7"))) {
    report += res;
  }

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

exit(0);