FreeBSD Security Advisory (FreeBSD-SA-09:03.ntpd.asc)

# SPDX-FileCopyrightText: 2009 E-Soft Inc.
# 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("1.3.6.1.4.1.25623.1.0.63242");
  script_version("2023-07-26T05:05:09+0000");
  script_tag(name:"last_modification", value:"2023-07-26 05:05:09 +0000 (Wed, 26 Jul 2023)");
  script_tag(name:"creation_date", value:"2009-01-20 22:42:09 +0100 (Tue, 20 Jan 2009)");
  script_cve_id("CVE-2009-0021");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_name("FreeBSD Security Advisory (FreeBSD-SA-09:03.ntpd.asc)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 E-Soft Inc.");
  script_family("FreeBSD Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/freebsd", "ssh/login/freebsdpatchlevel");

  script_tag(name:"insight", value:"The ntpd daemon is an implementation of the Network Time Protocol
(NTP) used to synchronize the time of a computer system to a reference
time source.

FreeBSD includes software from the OpenSSL Project.  The OpenSSL
Project is a collaborative effort to develop a robust,
commercial-grade, full-featured Open Source toolkit implementing the
Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1)
protocols as well as a full-strength general purpose cryptography
library.

The EVP_VerifyFinal() function from OpenSSL is used to determine if a
digital signature is valid.  When ntpd(8) is set to cryptographically
authenticate NTP data it incorrectly checks the return value from
EVP_VerifyFinal().");

  script_tag(name:"solution", value:"Upgrade your system to the appropriate stable release
  or security branch dated after the correction date.");

  script_xref(name:"URL", value:"https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-09:03.ntpd.asc");

  script_tag(name:"summary", value:"The remote host is missing an update to the system
  as announced in the referenced advisory FreeBSD-SA-09:03.ntpd.asc");

  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("pkg-lib-bsd.inc");

vuln = FALSE;

if(patchlevelcmp(rel:"7.1", patchlevel:"2")<0) {
  vuln = TRUE;
}
if(patchlevelcmp(rel:"7.0", patchlevel:"9")<0) {
  vuln = TRUE;
}
if(patchlevelcmp(rel:"6.4", patchlevel:"3")<0) {
  vuln = TRUE;
}
if(patchlevelcmp(rel:"6.3", patchlevel:"9")<0) {
  vuln = TRUE;
}

if(vuln) {
  security_message(port:0);
} else if (__pkg_match) {
  exit(99);
}