GLSA-200511-11 : linux-ftpd-ssl: Remote buffer overflow

2005-11-15T00:00:00
ID GENTOO_GLSA-200511-11.NASL
Type nessus
Reporter This script is Copyright (C) 2005-2021 Tenable Network Security, Inc.
Modified 2005-11-15T00:00:00

Description

The remote host is affected by the vulnerability described in GLSA-200511-11 (linux-ftpd-ssl: Remote buffer overflow)

A buffer overflow vulnerability has been found in the
linux-ftpd-ssl package. A command that generates an excessively long
response from the server may overrun a stack buffer.

Impact :

An attacker that has permission to create directories that are
accessible via the FTP server could exploit this vulnerability.
Successful exploitation would execute arbitrary code on the local
machine with root privileges.

Workaround :

There is no known workaround at this time.

                                        
                                            #%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200511-11.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

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

if (description)
{
  script_id(20198);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2005-3524");
  script_xref(name:"GLSA", value:"200511-11");

  script_name(english:"GLSA-200511-11 : linux-ftpd-ssl: Remote buffer overflow");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200511-11
(linux-ftpd-ssl: Remote buffer overflow)

    A buffer overflow vulnerability has been found in the
    linux-ftpd-ssl package. A command that generates an excessively long
    response from the server may overrun a stack buffer.
  
Impact :

    An attacker that has permission to create directories that are
    accessible via the FTP server could exploit this vulnerability.
    Successful exploitation would execute arbitrary code on the local
    machine with root privileges.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200511-11"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All ftpd users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=net-ftp/netkit-ftpd-0.17-r3'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:netkit-ftpd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/11/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/11/15");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/11/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2021 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"net-ftp/netkit-ftpd", unaffected:make_list("ge 0.17-r3"), vulnerable:make_list("lt 0.17-r3"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-ftpd-ssl");
}