CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
84.7%
The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has openssl packages installed that are affected by multiple vulnerabilities:
The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i).
Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).
(CVE-2018-0734)
If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable non- stitched ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q). (CVE-2019-1559)
The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1). (CVE-2018-0735)
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 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0254. The text
# itself is copyright (C) ZTE, Inc.
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(132467);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");
script_cve_id("CVE-2018-0734", "CVE-2018-0735", "CVE-2019-1559");
script_bugtraq_id(105750, 105758, 107174);
script_xref(name:"CEA-ID", value:"CEA-2021-0004");
script_name(english:"NewStart CGSL CORE 5.05 / MAIN 5.05 : openssl Multiple Vulnerabilities (NS-SA-2019-0254)");
script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has openssl packages installed that are affected
by multiple vulnerabilities:
- The OpenSSL DSA signature algorithm has been shown to be
vulnerable to a timing side channel attack. An attacker
could use variations in the signing algorithm to recover
the private key. Fixed in OpenSSL 1.1.1a (Affected
1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i).
Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).
(CVE-2018-0734)
- If an application encounters a fatal protocol error and
then calls SSL_shutdown() twice (once to send a
close_notify, and once to receive one) then OpenSSL can
respond differently to the calling application if a 0
byte record is received with invalid padding compared to
if a 0 byte record is received with an invalid MAC. If
the application then behaves differently based on that
in a way that is detectable to the remote peer, then
this amounts to a padding oracle that could be used to
decrypt data. In order for this to be exploitable non-
stitched ciphersuites must be in use. Stitched
ciphersuites are optimised implementations of certain
commonly used ciphersuites. Also the application must
call SSL_shutdown() twice even if a protocol error has
occurred (applications should not do this but some do
anyway). Fixed in OpenSSL 1.0.2r (Affected
1.0.2-1.0.2q). (CVE-2019-1559)
- The OpenSSL ECDSA signature algorithm has been shown to
be vulnerable to a timing side channel attack. An
attacker could use variations in the signing algorithm
to recover the private key. Fixed in OpenSSL 1.1.0j
(Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a
(Affected 1.1.1). (CVE-2018-0735)
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:"http://security.gd-linux.com/notice/NS-SA-2019-0254");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL openssl packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:H/PR:N/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-2019-1559");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/29");
script_set_attribute(attribute:"patch_publication_date", value:"2019/12/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/31");
script_set_attribute(attribute:"plugin_type", value:"local");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"NewStart CGSL Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/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/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");
if (release !~ "CGSL CORE 5.05" &&
release !~ "CGSL MAIN 5.05")
audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.05 / NewStart CGSL MAIN 5.05');
if (!get_kb_item("Host/ZTE-CGSL/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "NewStart Carrier Grade Server Linux", cpu);
flag = 0;
pkgs = {
"CGSL CORE 5.05": [
"openssl-1.0.2k-19.el7.cgslv5_5.0.1.g1a212bb.lite",
"openssl-crypto-1.0.2k-19.el7.cgslv5_5.0.1.g1a212bb.lite",
"openssl-debuginfo-1.0.2k-19.el7.cgslv5_5.0.1.g1a212bb.lite",
"openssl-devel-1.0.2k-19.el7.cgslv5_5.0.1.g1a212bb.lite",
"openssl-libs-1.0.2k-19.el7.cgslv5_5.0.1.g1a212bb.lite",
"openssl-perl-1.0.2k-19.el7.cgslv5_5.0.1.g1a212bb.lite",
"openssl-static-1.0.2k-19.el7.cgslv5_5.0.1.g1a212bb.lite"
],
"CGSL MAIN 5.05": [
"openssl-1.0.2k-19.el7.cgslv5_5",
"openssl-debuginfo-1.0.2k-19.el7.cgslv5_5",
"openssl-devel-1.0.2k-19.el7.cgslv5_5",
"openssl-libs-1.0.2k-19.el7.cgslv5_5",
"openssl-perl-1.0.2k-19.el7.cgslv5_5",
"openssl-static-1.0.2k-19.el7.cgslv5_5"
]
};
pkg_list = pkgs[release];
foreach (pkg in pkg_list)
if (rpm_check(release:"ZTE " + release, reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssl");
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
84.7%