According to the version of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(131360);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/09");
script_cve_id("CVE-2019-16905");
script_name(english:"EulerOS 2.0 SP8 : openssh (EulerOS-SA-2019-2294)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
script_set_attribute(attribute:"description", value:
"According to the version of the openssh packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerability :
- OpenSSH 7.7 through 7.9 and 8.x before 8.1, when
compiled with an experimental key type, has a
pre-authentication integer overflow if a client or
server is configured to use a crafted XMSS key. This
leads to memory corruption and local code execution
because of an error in the XMSS key parsing algorithm.
NOTE: the XMSS implementation is considered
experimental in all released OpenSSH versions, and
there is no supported way to enable it when building
portable OpenSSH.(CVE-2019-16905)
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2294
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ff81612f");
script_set_attribute(attribute:"solution", value:
"Update the affected openssh package.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-16905");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"patch_publication_date", value:"2019/11/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/27");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssh");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssh-askpass");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssh-cavs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssh-clients");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssh-keycat");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssh-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssh-server");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
script_exclude_keys("Host/EulerOS/uvp_version");
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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
flag = 0;
pkgs = ["openssh-7.8p1-3.h23.eulerosv2r8",
"openssh-askpass-7.8p1-3.h23.eulerosv2r8",
"openssh-cavs-7.8p1-3.h23.eulerosv2r8",
"openssh-clients-7.8p1-3.h23.eulerosv2r8",
"openssh-keycat-7.8p1-3.h23.eulerosv2r8",
"openssh-ldap-7.8p1-3.h23.eulerosv2r8",
"openssh-server-7.8p1-3.h23.eulerosv2r8"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"8", 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, "openssh");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | openssh | p-cpe:/a:huawei:euleros:openssh |
huawei | euleros | openssh-askpass | p-cpe:/a:huawei:euleros:openssh-askpass |
huawei | euleros | openssh-cavs | p-cpe:/a:huawei:euleros:openssh-cavs |
huawei | euleros | openssh-clients | p-cpe:/a:huawei:euleros:openssh-clients |
huawei | euleros | openssh-keycat | p-cpe:/a:huawei:euleros:openssh-keycat |
huawei | euleros | openssh-ldap | p-cpe:/a:huawei:euleros:openssh-ldap |
huawei | euleros | openssh-server | p-cpe:/a:huawei:euleros:openssh-server |
huawei | euleros | 2.0 | cpe:/o:huawei:euleros:2.0 |