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nessusThis script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.OPENSUSE-2021-461.NASL
HistoryMar 24, 2021 - 12:00 a.m.

openSUSE Security Update : tor (openSUSE-2021-461)

2021-03-2400:00:00
This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

68.2%

This update for tor fixes the following issues :

tor was updated to 0.4.5.7

  • https://lists.torproject.org/pipermail/tor-announce/2021-March/000216.html

    • Fix 2 denial of service security issues (boo#1183726)
    • Disable the dump_desc() function that we used to dump unparseable information to disk (CVE-2021-28089)

    • Fix a bug in appending detached signatures to a pending consensus document that could be used to crash a directory authority (CVE-2021-28090)

    • Ship geoip files based on the IPFire Location Database
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2021-461.
#
# The text description of this plugin is (C) SUSE LLC.
#

include('compat.inc');

if (description)
{
  script_id(148066);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/10");

  script_cve_id("CVE-2021-28089", "CVE-2021-28090");

  script_name(english:"openSUSE Security Update : tor (openSUSE-2021-461)");

  script_set_attribute(attribute:"synopsis", value:
"The remote openSUSE host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"This update for tor fixes the following issues :

tor was updated to 0.4.5.7

- https://lists.torproject.org/pipermail/tor-announce/2021-March/000216.html

  - Fix 2 denial of service security issues (boo#1183726)

  + Disable the dump_desc() function that we used to dump
    unparseable information to disk (CVE-2021-28089)

  + Fix a bug in appending detached signatures to a pending
    consensus document that could be used to crash a
    directory authority (CVE-2021-28090)

  - Ship geoip files based on the IPFire Location Database");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1183726");
  # https://lists.torproject.org/pipermail/tor-announce/2021-March/000216.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?282a2bf5");
  script_set_attribute(attribute:"solution", value:
"Update the affected tor packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-28090");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-28089");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/24");

  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:15.2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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 !~ "^(SUSE15\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.2", 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 !~ "^(x86_64)$") audit(AUDIT_ARCH_NOT, "x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE15.2", reference:"tor-0.4.5.7-lp152.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"tor-debuginfo-0.4.5.7-lp152.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"tor-debugsource-0.4.5.7-lp152.2.9.1") ) 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");
}
VendorProductVersionCPE
novellopensusetorp-cpe:/a:novell:opensuse:tor
novellopensusetor-debuginfop-cpe:/a:novell:opensuse:tor-debuginfo
novellopensusetor-debugsourcep-cpe:/a:novell:opensuse:tor-debugsource
novellopensuse15.2cpe:/o:novell:opensuse:15.2

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

68.2%