CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
77.1%
The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2023:3160-1 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:3160-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(179292);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/15");
script_cve_id("CVE-2023-3446");
script_xref(name:"SuSE", value:"SUSE-SU-2023:3160-1");
script_xref(name:"IAVA", value:"2023-A-0398-S");
script_name(english:"SUSE SLES12 Security Update : openssl (SUSE-SU-2023:3160-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-
SU-2023:3160-1 advisory.
- Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key
or DH parameters may experience long delays. Where the key or parameters that are being checked have been
obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs
various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too
large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is
over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or
parameters that have been supplied. Some of those checks use the supplied modulus value even if it has
already been found to be too large. An application that calls DH_check() and supplies a key or parameters
obtained from an untrusted source could be vulernable to a Denial of Service attack. The function
DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those
other functions may similarly be affected. The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The
OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1213487");
script_set_attribute(attribute:"see_also", value:"https://lists.suse.com/pipermail/sle-updates/2023-August/030752.html");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-3446");
script_set_attribute(attribute:"solution", value:
"Update the affected 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:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-3446");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/07/13");
script_set_attribute(attribute:"patch_publication_date", value:"2023/08/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0-32bit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0-hmac");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0-hmac-32bit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl-doc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE Local Security Checks");
script_copyright(english:"This script is Copyright (C) 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/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);
var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'libopenssl-devel-1.0.2j-60.101.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
{'reference':'libopenssl1_0_0-1.0.2j-60.101.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
{'reference':'libopenssl1_0_0-32bit-1.0.2j-60.101.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
{'reference':'libopenssl1_0_0-hmac-1.0.2j-60.101.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
{'reference':'libopenssl1_0_0-hmac-32bit-1.0.2j-60.101.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
{'reference':'openssl-1.0.2j-60.101.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
{'reference':'openssl-doc-1.0.2j-60.101.1', 'sp':'2', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']}
];
var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var exists_check = NULL;
var rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && _release) {
if (exists_check) {
var check_flag = 0;
foreach var check (exists_check) {
if (!rpm_exists(release:_release, rpm:check)) continue;
check_flag++;
}
if (!check_flag) continue;
}
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libopenssl-devel / libopenssl1_0_0 / libopenssl1_0_0-32bit / etc');
}