Vulnerabilities > CVE-2006-0414 - Information Disclosure And Denial of Service vulnerability in Trac

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

Summary

Tor before 0.1.1.20 allows remote attackers to identify hidden services via a malicious Tor server that attempts a large number of accesses of the hidden service, which eventually causes a circuit to be built through the malicious server.

Nessus

  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-200606-04.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-200606-04 (Tor: Several vulnerabilities) Some integer overflows exist when adding elements to the smartlists. Non-printable characters received from the network are not properly sanitised before being logged. There are additional unspecified bugs in the directory server and in the internal circuits. Impact : The possible buffer overflow may allow a remote attacker to execute arbitrary code on the server by sending large inputs. The other vulnerabilities can lead to a Denial of Service, a lack of logged information, or some information disclosure. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id21671
    published2006-06-08
    reporterThis script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/21671
    titleGLSA-200606-04 : Tor: Several 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 200606-04.
    #
    # The advisory text is Copyright (C) 2001-2018 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(21671);
      script_version("1.15");
      script_cvs_date("Date: 2019/08/02 13:32:43");
    
      script_cve_id("CVE-2006-0414");
      script_xref(name:"GLSA", value:"200606-04");
    
      script_name(english:"GLSA-200606-04 : Tor: Several 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-200606-04
    (Tor: Several vulnerabilities)
    
        Some integer overflows exist when adding elements to the smartlists.
        Non-printable characters received from the network are not properly
        sanitised before being logged. There are additional unspecified bugs in
        the directory server and in the internal circuits.
      
    Impact :
    
        The possible buffer overflow may allow a remote attacker to execute
        arbitrary code on the server by sending large inputs. The other
        vulnerabilities can lead to a Denial of Service, a lack of logged
        information, or some information disclosure.
      
    Workaround :
    
        There is no known workaround at this time."
      );
      # http://tor.eff.org/cvs/tor/ChangeLog
      script_set_attribute(
        attribute:"see_also",
        value:"https://tor.eff.org//cvs/tor/ChangeLog"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/200606-04"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All Tor users should upgrade to the latest version:
        # emerge --sync
        # emerge --ask --oneshot --verbose net-misc/tor"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:tor");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2006/06/07");
      script_set_attribute(attribute:"plugin_publication_date", value:"2006/06/08");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      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/tor", unaffected:make_list("ge 0.1.1.20", "rge 0.1.0.18"), vulnerable:make_list("lt 0.1.1.20"))) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
      else security_warning(0);
      exit(0);
    }
    else
    {
      tested = qpkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Tor");
    }
    
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_D38E18109EF711DAB410000E0C2E438A.NASL
    descriptionRoger Dingledine reports : If you offer a Tor hidden service, an adversary who can run a fast Tor server and who knows some basic statistics can find the location of your hidden service in a matter of minutes to hours.
    last seen2020-06-01
    modified2020-06-02
    plugin id21515
    published2006-05-13
    reporterThis script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/21515
    titleFreeBSD : tor -- malicious tor server can locate a hidden service (d38e1810-9ef7-11da-b410-000e0c2e438a)
    code
    #%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(21515);
      script_version("1.11");
      script_cvs_date("Date: 2019/08/02 13:32:38");
    
      script_cve_id("CVE-2006-0414");
    
      script_name(english:"FreeBSD : tor -- malicious tor server can locate a hidden service (d38e1810-9ef7-11da-b410-000e0c2e438a)");
      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:
    "Roger Dingledine reports :
    
    If you offer a Tor hidden service, an adversary who can run a fast Tor
    server and who knows some basic statistics can find the location of
    your hidden service in a matter of minutes to hours."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://archives.seul.org/or/announce/Jan-2006/msg00001.html"
      );
      # https://vuxml.freebsd.org/freebsd/d38e1810-9ef7-11da-b410-000e0c2e438a.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?c48aa292"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:tor");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2006/01/12");
      script_set_attribute(attribute:"patch_publication_date", value:"2006/02/16");
      script_set_attribute(attribute:"plugin_publication_date", value:"2006/05/13");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2006-2019 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:"tor<0.1.0.12")) 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");