Vulnerabilities > CVE-2011-1756 - Resource Management Errors vulnerability in Citadel

#%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-2011:0882. The text 
# itself is copyright (C) Red Hat, Inc.
#

if (NASL_LEVEL < 3000) exit(0);

include("compat.inc");

if (description)
{
  script_id(63985);
  script_version("1.10");
  script_cvs_date("Date: 2019/10/25 13:36:16");

  script_cve_id("CVE-2003-1564", "CVE-2011-1753", "CVE-2011-1754", "CVE-2011-1755", "CVE-2011-1756", "CVE-2011-1757", "CVE-2011-2188");
  script_bugtraq_id(48250);
  script_xref(name:"RHSA", value:"2011:0882");

  script_name(english:"RHEL 5 : jabberd (RHSA-2011:0882)");
  script_summary(english:"Checks 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 jabberd package that fixes one security issue is now
available for Red Hat Network Satellite 5.4.1 for Red Hat Enterprise
Linux 5.

The Red Hat Security Response Team has rated this update as having low
security impact. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available from the
CVE link in the References section.

This package provides jabberd 2, an Extensible Messaging and Presence
Protocol (XMPP) server used for XML based communication.

It was found that the jabberd daemon did not properly detect recursion
during entity expansion. A remote attacker could provide a
specially crafted XML file containing a large number of nested entity
references, which once processed by the jabberd daemon, could lead to
a denial of service (excessive memory and CPU consumption).
(CVE-2011-1755)

Red Hat would like to thank Nico Golde of the Debian Security Team for
reporting this issue. The Debian Security Team acknowledges Wouter
Coekaerts as the original reporter.

Users of Red Hat Network Satellite 5.4.1 are advised to upgrade to
this updated jabberd package, which resolves this issue. For this
update to take effect, Red Hat Network Satellite must be restarted.
Refer to the Solution section for details."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.redhat.com/security/data/cve/CVE-2011-1755.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://rhn.redhat.com/errata/RHSA-2011-0882.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected jabberd package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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_cwe_id(189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:jabberd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 Tenable Network Security, Inc.");
  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");

  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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
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);

flag = 0;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"jabberd-2.2.8-12.el5sat")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"jabberd-2.2.8-12.el5sat")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"jabberd-2.2.8-12.el5sat")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(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-2250. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(55038);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2011-1756");
  script_xref(name:"DSA", value:"2250");

  script_name(english:"Debian DSA-2250-1 : citadel - 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:
"Wouter Coekaerts discovered that the Jabber server component of
Citadel, a complete and feature-rich groupware server, is vulnerable
to the so-called'billion laughs' attack because it does not prevent
entity expansion on received data. This allows an attacker to perform
denial of service attacks against the service by sending specially
crafted XML data to it."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/citadel"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2011/dsa-2250"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the citadel packages.

For the oldstable distribution (lenny), this problem has been fixed in
version 7.37-8+lenny1.

For the stable distribution (squeeze), this problem has been fixed in
version 7.83-2squeeze2."
  );
  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:debian:debian_linux:citadel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/03/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/06/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2020 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:"5.0", prefix:"citadel", reference:"7.37-8+lenny1")) flag++;
if (deb_check(release:"6.0", prefix:"citadel-client", reference:"7.83-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"citadel-dbg", reference:"7.83-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"citadel-doc", reference:"7.83-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"citadel-mta", reference:"7.83-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"citadel-server", reference:"7.83-2squeeze2")) 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-2011:0881. The text 
# itself is copyright (C) Red Hat, Inc.
#

if (NASL_LEVEL < 3000) exit(0);

include("compat.inc");

if (description)
{
  script_id(63984);
  script_version("1.10");
  script_cvs_date("Date: 2019/10/25 13:36:16");

  script_cve_id("CVE-2003-1564", "CVE-2011-1753", "CVE-2011-1754", "CVE-2011-1755", "CVE-2011-1756", "CVE-2011-1757", "CVE-2011-2188");
  script_bugtraq_id(48250);
  script_xref(name:"RHSA", value:"2011:0881");

  script_name(english:"RHEL 5 : jabberd (RHSA-2011:0881)");
  script_summary(english:"Checks 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 jabberd package that fixes one security issue is now
available for Red Hat Network Proxy 5.4.1 for Red Hat Enterprise Linux
5.

The Red Hat Security Response Team has rated this update as having low
security impact. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available from the
CVE link in the References section.

This package provides jabberd 2, an Extensible Messaging and Presence
Protocol (XMPP) server used for XML based communication.

It was found that the jabberd daemon did not properly detect recursion
during entity expansion. A remote attacker could provide a
specially crafted XML file containing a large number of nested entity
references, which once processed by the jabberd daemon, could lead to
a denial of service (excessive memory and CPU consumption).
(CVE-2011-1755)

Red Hat would like to thank Nico Golde of the Debian Security Team for
reporting this issue. The Debian Security Team acknowledges Wouter
Coekaerts as the original reporter.

Users of Red Hat Network Proxy 5.4.1 are advised to upgrade to this
updated jabberd package, which resolves this issue. For this update to
take effect, Red Hat Network Proxy must be restarted. Refer to the
Solution section for details."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.redhat.com/security/data/cve/CVE-2011-1755.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://rhn.redhat.com/errata/RHSA-2011-0881.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected jabberd package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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_cwe_id(189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:jabberd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 Tenable Network Security, Inc.");
  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");

  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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
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);

flag = 0;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"jabberd-2.2.8-12.el5sat")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"jabberd-2.2.8-12.el5sat")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"jabberd-2.2.8-12.el5sat")) flag++;


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