9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.973 High
EPSS
Percentile
99.9%
The remote OracleVM system is missing necessary patches to address critical security updates :
It was found that the fix for CVE-2018-16509 was not complete, the missing pieces added into ghostscript-CVE-2018-16509.patch
Resolves: #1641124 - CVE-2018-16509 ghostscript:
/invalidaccess bypass after failed restore
Added security fix for CVE-2017-8291 (bug #1446063)
#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2018-0285.
#
include("compat.inc");
if (description)
{
script_id(119484);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/27");
script_cve_id("CVE-2017-8291", "CVE-2018-16509");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/06/14");
script_name(english:"OracleVM 3.3 / 3.4 : ghostscript (OVMSA-2018-0285)");
script_summary(english:"Checks the RPM output for the updated package.");
script_set_attribute(
attribute:"synopsis",
value:"The remote OracleVM host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :
- It was found that the fix for CVE-2018-16509 was not
complete, the missing pieces added into
ghostscript-CVE-2018-16509.patch
- Resolves: #1641124 - CVE-2018-16509 ghostscript:
/invalidaccess bypass after failed restore
- Added security fix for CVE-2017-8291 (bug #1446063)"
);
# https://oss.oracle.com/pipermail/oraclevm-errata/2018-December/000920.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?33457c2d"
);
# https://oss.oracle.com/pipermail/oraclevm-errata/2018-December/000919.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?2fef182f"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected ghostscript package."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-16509");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Ghostscript Failed Restore Command Execution');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:ghostscript");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/27");
script_set_attribute(attribute:"patch_publication_date", value:"2018/12/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/07");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"OracleVM Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list");
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/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "(3\.3|3\.4)" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.3 / 3.4", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
flag = 0;
if (rpm_check(release:"OVS3.3", reference:"ghostscript-8.70-24.el6_10.2")) flag++;
if (rpm_check(release:"OVS3.4", reference:"ghostscript-8.70-24.el6_10.2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ghostscript");
}
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.973 High
EPSS
Percentile
99.9%