RHEL 2.1 / 3 : squid (RHSA-2004:591)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2004:591. The text 
# itself is copyright (C) Red Hat, Inc.
#

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

if (description)
{
  script_id(15533);
  script_version("1.32");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2004-0918");
  script_bugtraq_id(11385);
  script_xref(name:"RHSA", value:"2004:591");

  script_name(english:"RHEL 2.1 / 3 : squid (RHSA-2004:591)");
  script_summary(english:"Checks the rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated squid package that fixes a remote denial of service
vulnerability is now available.

Squid is a full-featured Web proxy cache.

iDEFENSE reported a flaw in the squid SNMP module. This flaw could
allow an attacker who has the ability to send arbitrary packets to the
SNMP port to restart the server, causing it to drop all open
connections. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2004-0918 to this issue.

All users of squid should update to this erratum package, which
contains a backport of the security fix for this vulnerability."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2004-0918"
  );
  # http://www.idefense.com/application/poi/display?id=152&type=vulnerabilities
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d34310cf"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2004:591"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected squid package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:squid");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/01/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2004/10/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/10/21");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^(2\.1|3)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1 / 3.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2004:591";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"squid-2.4.STABLE7-1.21as")) flag++;

  if (rpm_check(release:"RHEL3", reference:"squid-2.5.STABLE3-6.3E.2")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squid");
  }
}