CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
88.7%
According to the versions of the ruby packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND.
This leads to a heap-based buffer over-read.(CVE-2019-19204)
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first argument (aka the ‘command’ argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An attacker can exploit this to call an arbitrary Ruby method.(CVE-2019-16255)
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within File.fnmatch functions.(CVE-2019-15845)
WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.(CVE-2019-16201)
The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability.
This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby.
Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent.(CVE-2020-10663)
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(137936);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/05");
script_cve_id(
"CVE-2019-15845",
"CVE-2019-16201",
"CVE-2019-16255",
"CVE-2019-19204",
"CVE-2020-10663"
);
script_name(english:"EulerOS Virtualization 3.0.6.0 : ruby (EulerOS-SA-2020-1717)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security
updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the ruby packages installed, the EulerOS
Virtualization installation on the remote host is affected by the
following vulnerabilities :
- An issue was discovered in Oniguruma 6.x before
6.9.4_rc2. In the function fetch_interval_quantifier
(formerly known as fetch_range_quantifier) in
regparse.c, PFETCH is called without checking PEND.
This leads to a heap-based buffer
over-read.(CVE-2019-19204)
- Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x
through 2.6.4 allows code injection if the first
argument (aka the 'command' argument) to Shell#[] or
Shell#test in lib/shell.rb is untrusted data. An
attacker can exploit this to call an arbitrary Ruby
method.(CVE-2019-16255)
- Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x
through 2.6.4 mishandles path checking within
File.fnmatch functions.(CVE-2019-15845)
- WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7,
2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a
regular expression Denial of Service cause by
looping/backtracking. A victim must expose a WEBrick
server that uses DigestAuth to the Internet or a
untrusted network.(CVE-2019-16201)
- The JSON gem through 2.2.0 for Ruby, as used in Ruby
2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through
2.6.5, has an Unsafe Object Creation Vulnerability.
This is quite similar to CVE-2013-0269, but does not
rely on poor garbage-collection behavior within Ruby.
Specifically, use of JSON parsing methods can lead to
creation of a malicious object within the interpreter,
with adverse effects that are
application-dependent.(CVE-2020-10663)
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-2020-1717
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d533db24");
script_set_attribute(attribute:"solution", value:
"Update the affected ruby packages.");
script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:H/PR:N/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-2019-16255");
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:"2020/06/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/01");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-irb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-bigdecimal");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-io-console");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-json");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-psych");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-rdoc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygems");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.6.0");
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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.6.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.6.0");
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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
flag = 0;
pkgs = ["ruby-2.0.0.648-33.h25",
"ruby-irb-2.0.0.648-33.h25",
"ruby-libs-2.0.0.648-33.h25",
"rubygem-bigdecimal-1.2.0-33.h25",
"rubygem-io-console-0.4.2-33.h25",
"rubygem-json-1.7.7-33.h25",
"rubygem-psych-2.0.0-33.h25",
"rubygem-rdoc-4.0.0-33.h25",
"rubygems-2.0.14.1-33.h25"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", 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, "ruby");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | ruby | p-cpe:/a:huawei:euleros:ruby |
huawei | euleros | ruby-irb | p-cpe:/a:huawei:euleros:ruby-irb |
huawei | euleros | ruby-libs | p-cpe:/a:huawei:euleros:ruby-libs |
huawei | euleros | rubygem-bigdecimal | p-cpe:/a:huawei:euleros:rubygem-bigdecimal |
huawei | euleros | rubygem-io-console | p-cpe:/a:huawei:euleros:rubygem-io-console |
huawei | euleros | rubygem-json | p-cpe:/a:huawei:euleros:rubygem-json |
huawei | euleros | rubygem-psych | p-cpe:/a:huawei:euleros:rubygem-psych |
huawei | euleros | rubygem-rdoc | p-cpe:/a:huawei:euleros:rubygem-rdoc |
huawei | euleros | rubygems | p-cpe:/a:huawei:euleros:rubygems |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:3.0.6.0 |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
88.7%