Vulnerabilities > CVE-2013-7295 - Cryptographic Issues vulnerability in Torproject TOR

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2014-86.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(75409);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2013-7295");

  script_name(english:"openSUSE Security Update : tor (openSUSE-SU-2014:0143-1)");
  script_summary(english:"Check for the openSUSE-2014-86 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - fixes potentially poor random number generation for
    users who 1) use OpenSSL 1.0.0 or later, 2) set
    'HardwareAccel 1' in their torrc file, 3) have 'Sandy
    Bridge' or 'Ivy Bridge' Intel processors and 4) have no
    state file in their DataDirectory (as would happen on
    first start). Users who generated relay or hidden
    service identity keys in such a situation should discard
    them and generate new ones. No 2 is not the default
    configuration for openSUSE. [bnc#859421] [CVE-2013-7295] 

  - added patches :

  - tor-0.2.3.x-CVE-2013-7295.patch"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=859421"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2014-01/msg00095.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected tor packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:tor");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:tor-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:tor-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/01/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE12\.3|SUSE13\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.3 / 13.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE12.3", reference:"tor-0.2.3.25-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"tor-debuginfo-0.2.3.25-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"tor-debugsource-0.2.3.25-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"tor-0.2.3.25-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"tor-debuginfo-0.2.3.25-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"tor-debugsource-0.2.3.25-5.4.1") ) 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, "tor / tor-debuginfo / tor-debugsource");
}

#%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-2014:123. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(74481);
  script_version("1.6");
  script_cvs_date("Date: 2019/08/02 13:32:56");

  script_cve_id("CVE-2013-7295", "CVE-2014-0160");
  script_bugtraq_id(64651, 66690);
  script_xref(name:"MDVSA", value:"2014:123");

  script_name(english:"Mandriva Linux Security Advisory : tor (MDVSA-2014:123)");
  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:
"Updated tor packages fix multiple vulnerabilities :

Tor before 0.2.4.20, when OpenSSL 1.x is used in conjunction with a
certain HardwareAccel setting on Intel Sandy Bridge and Ivy Bridge
platforms, does not properly generate random numbers for relay
identity keys and hidden-service identity keys, which might make it
easier for remote attackers to bypass cryptographic protection
mechanisms via unspecified vectors (CVE-2013-7295).

Update to version 0.2.4.22 solves these major and security problems :

  - Block authority signing keys that were used on
    authorities vulnerable to the heartbleed bug in OpenSSL
    (CVE-2014-0160).

  - Fix a memory leak that could occur if a microdescriptor
    parse fails during the tokenizing step.

  - The relay ciphersuite list is now generated
    automatically based on uniform criteria, and includes
    all OpenSSL ciphersuites with acceptable strength and
    forward secrecy.

  - Relays now trust themselves to have a better view than
    clients of which TLS ciphersuites are better than
    others.

  - Clients now try to advertise the same list of
    ciphersuites as Firefox 28.

For other changes see the upstream change log"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://advisories.mageia.org/MGASA-2014-0059.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://advisories.mageia.org/MGASA-2014-0256.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected tor package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N");
  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:"exploit_framework_core", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:tor");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/06/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 Tenable Network Security, Inc.");
  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:"MDK-MBS1", cpu:"x86_64", reference:"tor-0.2.4.22-1.mbs1")) 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");