Vulnerabilities > CVE-2006-4346 - Unspecified vulnerability in Digium Asterisk 1.2.10

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
digium
nessus

Summary

Asterisk 1.2.10 supports the use of client-controlled variables to determine filenames in the Record function, which allows remote attackers to (1) execute code via format string specifiers or (2) overwrite files via directory traversals involving unspecified vectors, as demonstrated by the CALLERIDNAME variable.

Vulnerable Configurations

Part Description Count
Application
Digium
1

Nessus

NASL familyGentoo Local Security Checks
NASL idGENTOO_GLSA-200610-15.NASL
descriptionThe remote host is affected by the vulnerability described in GLSA-200610-15 (Asterisk: Multiple vulnerabilities) Asterisk contains buffer overflows in channels/chan_mgcp.c from the MGCP driver and in channels/chan_skinny.c from the Skinny channel driver for Cisco SCCP phones. It also dangerously handles client-controlled variables to determine filenames in the Record() function. Finally, the SIP channel driver in channels/chan_sip.c could use more resources than necessary under unspecified circumstances. Impact : A remote attacker could execute arbitrary code by sending a crafted audit endpoint (AUEP) response, by sending an overly large Skinny packet even before authentication, or by making use of format strings specifiers through the client-controlled variables. An attacker could also cause a Denial of Service by resource consumption through the SIP channel driver. Workaround : There is no known workaround for the format strings vulnerability at this time. You can comment the lines in /etc/asterisk/mgcp.conf, /etc/asterisk/skinny.conf and /etc/asterisk/sip.conf to deactivate the three vulnerable channel drivers. Please note that the MGCP channel driver is disabled by default.
last seen2020-06-01
modified2020-06-02
plugin id22930
published2006-10-31
reporterThis script is Copyright (C) 2006-2019 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/22930
titleGLSA-200610-15 : Asterisk: Multiple vulnerabilities
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200610-15.
#
# 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("compat.inc");

if (description)
{
  script_id(22930);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:43");

  script_cve_id("CVE-2006-4345", "CVE-2006-4346", "CVE-2006-5444", "CVE-2006-5445");
  script_xref(name:"GLSA", value:"200610-15");

  script_name(english:"GLSA-200610-15 : Asterisk: Multiple vulnerabilities");
  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-200610-15
(Asterisk: Multiple vulnerabilities)

    Asterisk contains buffer overflows in channels/chan_mgcp.c from the
    MGCP driver and in channels/chan_skinny.c from the Skinny channel
    driver for Cisco SCCP phones. It also dangerously handles
    client-controlled variables to determine filenames in the Record()
    function. Finally, the SIP channel driver in channels/chan_sip.c could
    use more resources than necessary under unspecified circumstances.
  
Impact :

    A remote attacker could execute arbitrary code by sending a crafted
    audit endpoint (AUEP) response, by sending an overly large Skinny
    packet even before authentication, or by making use of format strings
    specifiers through the client-controlled variables. An attacker could
    also cause a Denial of Service by resource consumption through the SIP
    channel driver.
  
Workaround :

    There is no known workaround for the format strings vulnerability at
    this time. You can comment the lines in /etc/asterisk/mgcp.conf,
    /etc/asterisk/skinny.conf and /etc/asterisk/sip.conf to deactivate the
    three vulnerable channel drivers. Please note that the MGCP channel
    driver is disabled by default."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200610-15"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Asterisk users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=net-misc/asterisk-1.2.13'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:gentoo:linux:asterisk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/10/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/10/31");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 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-misc/asterisk", unaffected:make_list("ge 1.2.13", "rge 1.0.12"), vulnerable:make_list("lt 1.2.13", "lt 1.0.12"))) 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, "Asterisk");
}