Vulnerabilities > CVE-2004-2467 - Denial-Of-Service vulnerability in EFS Software Easy Chat Server 1.2

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
efs-software
nessus

Summary

chat.ghp in Easy Chat Server 1.2 allows remote attackers to add a large number of fake users, then eventually cause a denial of service (server crash).

Vulnerable Configurations

Part Description Count
Application
Efs_Software
1

Nessus

NASL familyUbuntu Local Security Checks
NASL idUBUNTU_USN-50-1.NASL
descriptionCAN-2004-1125 : The recent USN-48-1 fixed a buffer overflow in xpdf. Since CUPS contains xpdf code to convert incoming PDF files to the PostScript format, this vulnerability applies to cups as well. In this case it could even lead to privilege escalation: if an attacker submitted a malicious PDF file for printing, he could be able to execute arbitrary commands with the privileges of the CUPS server. Please note that the Ubuntu version of CUPS runs as a minimally privileged user
last seen2020-06-01
modified2020-06-02
plugin id20668
published2006-01-15
reporterUbuntu Security Notice (C) 2004-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/20668
titleUbuntu 4.10 : cupsys vulnerabilities (USN-50-1)
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-50-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(20668);
  script_version("1.15");
  script_cvs_date("Date: 2019/08/02 13:33:00");

  script_cve_id("CVE-2004-1125", "CVE-2004-1267", "CVE-2004-1268", "CVE-2004-1269", "CVE-2004-1270", "CVE-2004-2467");
  script_xref(name:"USN", value:"50-1");

  script_name(english:"Ubuntu 4.10 : cupsys vulnerabilities (USN-50-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CAN-2004-1125 :

The recent USN-48-1 fixed a buffer overflow in xpdf. Since CUPS
contains xpdf code to convert incoming PDF files to the PostScript
format, this vulnerability applies to cups as well.

In this case it could even lead to privilege escalation: if
an attacker submitted a malicious PDF file for printing, he
could be able to execute arbitrary commands with the
privileges of the CUPS server.

Please note that the Ubuntu version of CUPS runs as a
minimally privileged user 'cupsys' by default, so there is
no possibility of root privilege escalation. The privileges
of the 'cupsys' user are confined to modifying printer
configurations, altering print jobs, and controlling
printers.

CAN-2004-1267 :

Ariel Berkman discovered a buffer overflow in the ParseCommand()
function of the HPGL input driver. If an attacker printed a malicious
HPGL file, they could exploit this to execute arbitrary commands with
the privileges of the CUPS server.

CAN-2004-1268, CAN-2004-1269, CAN-2004-1270 :

Bartlomiej Sieka discovered three flaws in lppasswd. These allowed
users to corrupt the new password file by filling up the disk, sending
certain signals, or closing the standard output and/or error streams.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_cwe_id(20, 119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cupsys");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cupsys-bsd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cupsys-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsimage2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsimage2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsys2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsys2-gnutls10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:4.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/12/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2004-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


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

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(4\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"4.10", pkgname:"cupsys", pkgver:"1.1.20final+cvs20040330-4ubuntu16.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"cupsys-bsd", pkgver:"1.1.20final+cvs20040330-4ubuntu16.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"cupsys-client", pkgver:"1.1.20final+cvs20040330-4ubuntu16.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libcupsimage2", pkgver:"1.1.20final+cvs20040330-4ubuntu16.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libcupsimage2-dev", pkgver:"1.1.20final+cvs20040330-4ubuntu16.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libcupsys2-dev", pkgver:"1.1.20final+cvs20040330-4ubuntu16.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libcupsys2-gnutls10", pkgver:"1.1.20final+cvs20040330-4ubuntu16.3")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "cupsys / cupsys-bsd / cupsys-client / libcupsimage2 / etc");
}