Vulnerabilities > CVE-2003-0795 - Improper Input Validation vulnerability in multiple products

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-415. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(15252);
  script_version("1.19");
  script_cvs_date("Date: 2019/08/02 13:32:17");

  script_cve_id("CVE-2003-0795", "CVE-2003-0858");
  script_bugtraq_id(9029);
  script_xref(name:"DSA", value:"415");

  script_name(english:"Debian DSA-415-1 : zebra - denial of service");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Two vulnerabilities were discovered in zebra, an IP routing daemon :

  - CAN-2003-0795 - a bug in the telnet CLI could allow a
    remote attacker to cause a zebra process to crash,
    resulting in a denial of service.
  - CAN-2003-0858 - netlink messages sent by other users
    (rather than the kernel) would be accepted, leading to a
    denial of service."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2004/dsa-415"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"For the current stable distribution (woody) this problem has been
fixed in version 0.92a-5woody2.


The zebra package has been obsoleted in the unstable distribution by
GNU Quagga, where this problem was fixed in version 0.96.4x-4.

We recommend that you update your zebra 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_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zebra");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/01/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 Tenable Network Security, Inc.");
  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:"3.0", prefix:"zebra", reference:"0.92a-5woody2")) flag++;
if (deb_check(release:"3.0", prefix:"zebra-doc", reference:"0.92a-5woody2")) flag++;

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

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2003:305. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(12427);
  script_version ("1.24");
  script_cvs_date("Date: 2019/10/25 13:36:10");

  script_cve_id("CVE-2003-0795", "CVE-2003-0858");
  script_xref(name:"RHSA", value:"2003:305");

  script_name(english:"RHEL 2.1 : zebra (RHSA-2003:305)");
  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:
"Updated zebra packages that close a locally-exploitable and a
remotely-exploitable denial of service vulnerability are now
available.

Zebra an open source implementation of TCP/IP routing software.

Jonny Robertson reported that Zebra can be remotely crashed if a Zebra
password has been enabled and a remote attacker can connect to the
Zebra telnet management port. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CVE-2003-0795 to this
issue.

Herbert Xu reported that Zebra can accept spoofed messages sent on the
kernel netlink interface by other users on the local machine. This
could lead to a local denial of service attack. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2003-0858 to this issue.

Users of Zebra should upgrade to these erratum packages, which contain
a patch preventing Zebra from crashing when it receives a telnet
option delimiter without any option data, and a patch that checks that
netlink messages actually came from the kernel."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2003-0795"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2003-0858"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2003:305"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected zebra 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:redhat:enterprise_linux:zebra");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2003/12/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2003/11/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 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([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1", "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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if (cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i386", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2003:305";
  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:"zebra-0.91a-10.21AS")) 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, "zebra");
  }
}

# MA 2003-11-17: added Services/zebra + MIXED_ATTACK support

# Changes by Tenable:
# - Updated to use compat.inc (11/16/09)
# - Revised plugin title, removed CVE-2003-0858 (6/27/09)


include("compat.inc");

if(description)
{
        script_id(11925);
        script_version("1.25");

	script_cve_id("CVE-2003-0795");
        script_bugtraq_id(9029);
  	script_xref(name:"RHSA", value:"2003:307-01");

        script_name(english:"Quagga / Zebra Malformed Telnet Command Denial of Service");

 script_set_attribute(attribute:"synopsis", value:
"The remote routing daemon is prone to a denial of service attack." );
 script_set_attribute(attribute:"description", value:
"A remote denial of service vulnerability exists in Zebra and Quagga
that can be triggered by sending a telnet option delimiter with no
actual option data, which causes the daemon to attempt to dereference
a typically NULL pointer and crash. 

This affects all versions from 0.90a to 0.93b." );
 script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2003/Nov/151" );
 script_set_attribute(attribute:"see_also", value:"http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=107140" );
 script_set_attribute(attribute:"solution", value:
"If using Quagga, upgrade to version 0.96.4 or later." );
 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:POC/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
 script_set_attribute(attribute:"plugin_publication_date", value: "2003/11/17");
 script_set_attribute(attribute:"vuln_publication_date", value: "2003/11/13");
 script_cvs_date("Date: 2018/11/15 20:50:22");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_end_attributes();

        script_summary(english:"Attempts to crash the remote service Zebra and/or Quagga");
        script_category(ACT_MIXED_ATTACK);
        script_copyright(english:"This script is copyright (C) 2003-2018 Matt North");
	script_require_ports("Services/zebra", 2601, 2602, 2603, 2604, 2605);
	script_dependencie("find_service1.nasl");
        script_family(english:"Denial of Service");
        exit(0);
}

include("global_settings.inc");

# Maybe we should try this on any telnet server?
port = get_kb_item("Services/zebra");

if (! port) port = 2601;
if (! get_port_state(port)) exit(0);

if (safe_checks())
{
  banner = get_kb_item("zebra/banner/"+port);
  if (!banner)
  {
    soc = open_sock_tcp(port);
    if(!soc) exit(0);
    banner = recv_line(socket: soc, length: 1024);
    if ( banner ) set_kb_item(name: "zebra/banner/"+port, value: banner);
    close(soc);
  }
  if (banner && egrep(string: banner, 
		pattern: "Hello, this is zebra \(version 0\.9[0-3][ab]?\)"))
    security_warning(port);
  exit(0);
}

if (report_paranoia < 2) exit(0);

soc = open_sock_tcp(port);
if(!soc) exit(0);

s = raw_string(0xff,0xf0,0xff,0xf0,0xff,0xf0);

send(socket:soc, data:s);
r = recv(socket: soc, length:1024);
close(soc);
alive = open_sock_tcp(port);
if(!alive) security_warning(port);
else close(alive);

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(59786);
  script_version("1.6");
  script_cvs_date("Date: 2018/11/15 20:50:23");

  script_cve_id("CVE-2003-0795");
  script_bugtraq_id(9029);

  script_name(english:"Quagga < 0.96.4 Zebra Denial of Service Vulnerability");
  script_summary(english:"Check the version of Quagga");

  script_set_attribute(attribute:"synopsis", value:
"The remote service may be affected by a denial of service
vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the installation of
Quagga's Zebra daemon listening on the remote host is affected by a
denial of service vulnerability.");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 0.96.4 or later.");
  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:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2003/Nov/169");
  script_set_attribute(attribute:"see_also", value:"https://marc.info/?l=bugtraq&m=106883387304266&w=2");

  script_set_attribute(attribute:"vuln_publication_date", value:"2003/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2003/11/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/29");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:quagga:quagga");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");

  script_dependencies("quagga_zebra_detect.nasl");
  script_require_keys("Quagga/Installed", "Settings/ParanoidReport");

  exit(0);
}

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

app = "Quagga Zebra";
kb = "Quagga/";

if (report_paranoia < 2)
  audit(AUDIT_PARANOID);

port = get_kb_item_or_exit(kb + "Installed");

kb += port + "/";
banner = get_kb_item_or_exit(kb + "Banner");
ver = get_kb_item_or_exit(kb + "Version");

if (ver !~ "^\d+(\.\d+)*$")
  audit(AUDIT_NONNUMERIC_VER, app, port, ver);

fix = "0.96.4";
if (ver_compare(ver:ver, fix:fix, strict:TRUE) >= 0)
  audit(AUDIT_LISTEN_NOT_VULN, app, port, ver);

report = NULL;
if (report_verbosity > 0)
{
  report =
    '\n  Version source    : ' + banner +
    '\n  Installed version : ' + ver +
    '\n  Fixed version     : ' + fix +
    '\n';
}

security_warning(port:port, extra:report);