Mandrake Linux Security Advisory : ypserv (MDKSA-2003:072)

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2003:072. 
# The text itself is copyright (C) Mandriva S.A.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(14055);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2003-0251");
  script_xref(name:"MDKSA", value:"2003:072");

  script_name(english:"Mandrake Linux Security Advisory : ypserv (MDKSA-2003:072)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Mandrake Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability was found in versions of ypserv prior to version 2.7.
If a malicious client were to query ypserv via TCP and subsequently
ignore the server's response, ypserv will block attempting to send the
reply. The result is that ypserv will fail to respond to other client
requests. ypserv 2.7 and above have been altered to fork a child for
each client request, which prevents any one request from causing the
server to block."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.linux-nis.org/nis/ypserv/ChangeLog"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ypserv package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ypserv");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2003/06/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/31");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2021 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:"MDK8.2", cpu:"i386", reference:"ypserv-2.8-1.1mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"ypserv-2.8-1.1mdk", yank:"mdk")) flag++;


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