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nessusThis script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.OPENSUSE-2021-384.NASL
HistoryMar 08, 2021 - 12:00 a.m.

openSUSE Security Update : mbedtls (openSUSE-2021-384)

2021-03-0800:00:00
This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
17
opensuse
mbedtls
security update
side channel
ecc
cve-2020-10932
recovery
ecdsa

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

23.7%

This update for mbedtls fixes the following issues :

  • mbedtls was updated to version 2.16.9

  • CVE-2020-10932: Fixed side channel in ECC code that allowed an adversary with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave) to fully recover an ECDSA private key (boo#1181468).

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2021-384.
#
# The text description of this plugin is (C) SUSE LLC.
#

include('compat.inc');

if (description)
{
  script_id(147174);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/03/06");

  script_cve_id("CVE-2020-10932");

  script_name(english:"openSUSE Security Update : mbedtls (openSUSE-2021-384)");

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

  - mbedtls was updated to version 2.16.9

  - CVE-2020-10932: Fixed side channel in ECC code that
    allowed an adversary with access to precise enough
    timing and memory access information (typically an
    untrusted operating system attacking a secure enclave)
    to fully recover an ECDSA private key (boo#1181468).");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1181468");
  script_set_attribute(attribute:"solution", value:
"Update the affected mbedtls packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-10932");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedcrypto3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedcrypto3-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedcrypto3-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedcrypto3-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedtls12");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedtls12-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedtls12-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedtls12-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedx509-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedx509-0-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedx509-0-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libmbedx509-0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:mbedtls-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:mbedtls-devel");
  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) 2021-2023 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 !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE15.2", reference:"libmbedcrypto3-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"libmbedcrypto3-debuginfo-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"libmbedtls12-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"libmbedtls12-debuginfo-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"libmbedx509-0-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"libmbedx509-0-debuginfo-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"mbedtls-debugsource-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", reference:"mbedtls-devel-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", cpu:"x86_64", reference:"libmbedcrypto3-32bit-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", cpu:"x86_64", reference:"libmbedcrypto3-32bit-debuginfo-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", cpu:"x86_64", reference:"libmbedtls12-32bit-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", cpu:"x86_64", reference:"libmbedtls12-32bit-debuginfo-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", cpu:"x86_64", reference:"libmbedx509-0-32bit-2.16.9-lp152.2.3.1") ) flag++;
if ( rpm_check(release:"SUSE15.2", cpu:"x86_64", reference:"libmbedx509-0-32bit-debuginfo-2.16.9-lp152.2.3.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libmbedcrypto3 / libmbedcrypto3-debuginfo / libmbedtls12 / etc");
}

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

23.7%