CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
91.1%
An update for emacs is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
GNU Emacs is a powerful, customizable, self-documenting text editor.
It provides special code editing features, a scripting language (elisp), and the capability to read e-mail and news.
Security Fix(es) :
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2017:2771 and
# CentOS Errata and Security Advisory 2017:2771 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(103362);
script_version("3.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2017-14482");
script_xref(name:"RHSA", value:"2017:2771");
script_name(english:"CentOS 7 : emacs (CESA-2017:2771)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote CentOS host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"An update for emacs is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.
GNU Emacs is a powerful, customizable, self-documenting text editor.
It provides special code editing features, a scripting language
(elisp), and the capability to read e-mail and news.
Security Fix(es) :
* A command injection flaw within the Emacs 'enriched mode' handling
has been discovered. By tricking an unsuspecting user into opening a
specially crafted file using Emacs, a remote attacker could exploit
this flaw to execute arbitrary commands with the privileges of the
Emacs user. (CVE-2017-14482)"
);
# https://lists.centos.org/pipermail/centos-announce/2017-September/022541.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?ada4ce14"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected emacs 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:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-14482");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:'CANVAS');
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:emacs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:emacs-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:emacs-el");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:emacs-filesystem");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:emacs-nox");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:emacs-terminal");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/09/14");
script_set_attribute(attribute:"patch_publication_date", value:"2017/09/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/21");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"CentOS Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"emacs-24.3-20.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"emacs-common-24.3-20.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"emacs-el-24.3-20.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"emacs-filesystem-24.3-20.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"emacs-nox-24.3-20.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"emacs-terminal-24.3-20.el7_4")) 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, "emacs / emacs-common / emacs-el / emacs-filesystem / emacs-nox / etc");
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
91.1%