Vulnerabilities > CVE-2009-1789 - Remote Denial Of Service vulnerability in Eggdrop 'ctcpbuf'

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2009-5568.
#

include("compat.inc");

if (description)
{
  script_id(38939);
  script_version ("1.13");
  script_cvs_date("Date: 2019/08/02 13:32:30");

  script_cve_id("CVE-2009-1789");
  script_bugtraq_id(34985);
  script_xref(name:"FEDORA", value:"2009-5568");

  script_name(english:"Fedora 9 : eggdrop-1.6.19-4.fc9 (2009-5568)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and
earlier allows remote attackers to cause a denial of service (crash)
via a crafted PRIVMSG that causes an empty string to trigger a
negative string length copy. NOTE: this issue exists because of an
incorrect fix for CVE-2007-2807. The current remote denial of service
is tracked as CVE-2009-1789.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=502650"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2009-May/024234.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?7780eb13"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected eggdrop package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:eggdrop");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:9");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/05/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/05/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 9.x", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC9", reference:"eggdrop-1.6.19-4.fc9")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "eggdrop");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2009-5572.
#

include("compat.inc");

if (description)
{
  script_id(38940);
  script_version ("1.13");
  script_cvs_date("Date: 2019/08/02 13:32:30");

  script_cve_id("CVE-2009-1789");
  script_bugtraq_id(34985);
  script_xref(name:"FEDORA", value:"2009-5572");

  script_name(english:"Fedora 10 : eggdrop-1.6.19-4.fc10 (2009-5572)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and
earlier allows remote attackers to cause a denial of service (crash)
via a crafted PRIVMSG that causes an empty string to trigger a
negative string length copy. NOTE: this issue exists because of an
incorrect fix for CVE-2007-2807. The current remote denial of service
is tracked as CVE-2009-1789.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=502650"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2009-May/024238.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?550204b8"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected eggdrop package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:eggdrop");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:10");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/05/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/05/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^10([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 10.x", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC10", reference:"eggdrop-1.6.19-4.fc10")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "eggdrop");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(38963);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:39");

  script_cve_id("CVE-2009-1789");
  script_bugtraq_id(34985);
  script_xref(name:"Secunia", value:"35104");

  script_name(english:"FreeBSD : eggdrop -- denial of service vulnerability (399f4cd7-4d59-11de-8811-0030843d3802)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Secunia reports :

The vulnerability is caused due to an error in the processing of
private messages within the server module
(/mod/server.mod/servrmsg.c). This can be exploited to cause a crash
by sending a specially crafted message to the bot."
  );
  # http://www.eggheads.org/news/2009/05/14/35
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.eggheads.org/news"
  );
  # https://vuxml.freebsd.org/freebsd/399f4cd7-4d59-11de-8811-0030843d3802.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?37ee7f43"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:eggdrop");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/05/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/05/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/06/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"eggdrop<1.6.19_2")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:pkg_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 Debian Security Advisory DSA-1826. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(44691);
  script_version("1.9");
  script_cvs_date("Date: 2019/08/02 13:32:22");

  script_cve_id("CVE-2007-2807", "CVE-2009-1789");
  script_bugtraq_id(24070, 34985);
  script_xref(name:"DSA", value:"1826");

  script_name(english:"Debian DSA-1826-1 : eggdrop - several vulnerabilities");
  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:
"Several vulnerabilities have been discovered in eggdrop, an advanced
IRC robot. The Common Vulnerabilities and Exposures project identifies
the following problems :

  - CVE-2007-2807
    It was discovered that eggdrop is vulnerable to a buffer
    overflow, which could result in a remote user executing
    arbitrary code. The previous DSA (DSA-1448-1) did not
    fix the issue correctly.

  - CVE-2009-1789
    It was discovered that eggdrop is vulnerable to a denial
    of service attack, that allows remote attackers to cause
    a crash via a crafted PRIVMSG."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=427157"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=528778"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-2807"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2009-1789"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2009/dsa-1826"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the eggdrop package.

For the stable distribution (lenny), these problems have been fixed in
version 1.6.19-1.1+lenny1.

For the old stable distribution (etch), these problems have been fixed
in version 1.6.18-1etch2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:eggdrop");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/07/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/02/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"4.0", prefix:"eggdrop", reference:"1.6.18-1etch2")) flag++;
if (deb_check(release:"4.0", prefix:"eggdrop-data", reference:"1.6.18-1etch2")) flag++;
if (deb_check(release:"5.0", prefix:"eggdrop", reference:"1.6.19-1.1+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"eggdrop-data", reference:"1.6.19-1.1+lenny1")) 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 Mandriva Linux Security Advisory MDVSA-2009:126. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(38982);
  script_version ("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:51");

  script_cve_id("CVE-2009-1789");
  script_bugtraq_id(34985);
  script_xref(name:"MDVSA", value:"2009:126-1");

  script_name(english:"Mandriva Linux Security Advisory : eggdrop (MDVSA-2009:126-1)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Mandriva Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and
earlier allows remote attackers to cause a denial of service (crash)
via a crafted PRIVMSG that causes an empty string to trigger a
negative string length copy. NOTE: this issue exists because of an
incorrect fix for CVE-2007-2807 (CVE-2009-1789).

Update :

Packages for 2008.0 are provided for Corporate Desktop 2008.0
customers"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected eggdrop package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:eggdrop");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2008.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/12/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/06/02");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"MDK2008.0", reference:"eggdrop-1.6.18-3.1mdv2008.0", yank:"mdv")) 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");