Mandrake Linux Security Advisory : dhcp (MDKSA-2000:013)

2012-09-06T00:00:00
ID MANDRAKE_MDKSA-2000-013.NASL
Type nessus
Reporter Tenable
Modified 2018-07-19T00:00:00

Description

The OpenBSD team discovered a vulnerability in it that allows for remote exploitation by a corrupt dhcp server, (or an attacker pretending to be a dhcp server). If this vulnerability is exploited, root access can be gained on the host running dhcp client remotely. The problem is that input is not checked and, as a result, it is possible to execute commands remotely when the network config files are being written on the dhcp client.

                                        
                                            #%NASL_MIN_LEVEL 70103

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2000:013. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(61811);
  script_version("1.4");
  script_cvs_date("Date: 2018/07/19 20:59:12");

  script_xref(name:"MDKSA", value:"2000:013");

  script_name(english:"Mandrake Linux Security Advisory : dhcp (MDKSA-2000:013)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandrake Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The OpenBSD team discovered a vulnerability in it that allows for
remote exploitation by a corrupt dhcp server, (or an attacker
pretending to be a dhcp server). If this vulnerability is exploited,
root access can be gained on the host running dhcp client remotely.
The problem is that input is not checked and, as a result, it is
possible to execute commands remotely when the network config files
are being written on the dhcp client."
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected dhcp and / or dhcp-client packages."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-client");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:6.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2000/07/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/09/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK6.0", cpu:"i386", reference:"dhcp-3.0b1pl12-6mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK6.0", cpu:"i386", reference:"dhcp-client-3.0b1pl12-6mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK6.1", cpu:"i386", reference:"dhcp-3.0b1pl12-6mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK6.1", cpu:"i386", reference:"dhcp-client-3.0b1pl12-6mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK7.0", cpu:"i386", reference:"dhcp-3.0b1pl12-6mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.0", cpu:"i386", reference:"dhcp-client-3.0b1pl12-6mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"dhcp-3.0b1pl12-6mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"dhcp-client-3.0b1pl12-6mdk", yank:"mdk")) flag++;


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