Debian DLA-639-1 : mactelnet security update

2016-09-26T00:00:00
ID DEBIAN_DLA-639.NASL
Type nessus
Reporter Tenable
Modified 2018-07-10T00:00:00

Description

CVE-2016-7115 Buffer overflow in the handle_packet function in mactelnet.c in the client in MAC-Telnet 0.4.3 and earlier allows remote TELNET servers to execute arbitrary code via a long string in an MT_CPTYPE_ENCRYPTIONKEY control packet.

For Debian 7 'Wheezy', these problems have been fixed in version 0.3.4-1+deb7u1.

We recommend that you upgrade your mactelnet packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-639-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(93692);
  script_version("2.5");
  script_cvs_date("Date: 2018/07/10 12:45:04");

  script_cve_id("CVE-2016-7115");

  script_name(english:"Debian DLA-639-1 : mactelnet security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2016-7115 Buffer overflow in the handle_packet function in
mactelnet.c in the client in MAC-Telnet 0.4.3 and earlier allows
remote TELNET servers to execute arbitrary code via a long string in
an MT_CPTYPE_ENCRYPTIONKEY control packet.

For Debian 7 'Wheezy', these problems have been fixed in version
0.3.4-1+deb7u1.

We recommend that you upgrade your mactelnet packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2016/09/msg00031.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/mactelnet"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected mactelnet-client, and mactelnet-server packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mactelnet-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mactelnet-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/09/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/09/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"mactelnet-client", reference:"0.3.4-1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"mactelnet-server", reference:"0.3.4-1+deb7u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");