5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.202 Low
EPSS
Percentile
96.4%
An update for openssl is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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.
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.
Security Fix(es) :
An integer underflow leading to an out of bounds read flaw was found in OpenSSL. A remote attacker could possibly use this flaw to crash a 32-bit TLS/SSL server or client using OpenSSL if it used the RC4-MD5 cipher suite. (CVE-2017-3731)
A denial of service flaw was found in the way the TLS/SSL protocol defined processing of ALERT packets during a connection handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an excessive amount of CPU and fail to accept connections form other clients. (CVE-2016-8610)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2017:0286. The text
# itself is copyright (C) Red Hat, Inc.
#
include("compat.inc");
if (description)
{
script_id(97294);
script_version("3.16");
script_cvs_date("Date: 2019/10/24 15:35:42");
script_cve_id("CVE-2016-8610", "CVE-2017-3731");
script_xref(name:"RHSA", value:"2017:0286");
script_name(english:"RHEL 6 / 7 : openssl (RHSA-2017:0286)");
script_summary(english:"Checks the rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"An update for openssl is now available for Red Hat Enterprise Linux 6
and Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security
impact of Moderate. 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.
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL)
and Transport Layer Security (TLS) protocols, as well as a
full-strength general-purpose cryptography library.
Security Fix(es) :
* An integer underflow leading to an out of bounds read flaw was found
in OpenSSL. A remote attacker could possibly use this flaw to crash a
32-bit TLS/SSL server or client using OpenSSL if it used the RC4-MD5
cipher suite. (CVE-2017-3731)
* A denial of service flaw was found in the way the TLS/SSL protocol
defined processing of ALERT packets during a connection handshake. A
remote attacker could use this flaw to make a TLS/SSL server consume
an excessive amount of CPU and fail to accept connections form other
clients. (CVE-2016-8610)"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.openssl.org/news/secadv/20170126.txt"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2017:0286"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2016-8610"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2017-3731"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-perl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssl-static");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.4");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.7");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/04");
script_set_attribute(attribute:"patch_publication_date", value:"2017/02/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/02/21");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^(6|7)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x / 7.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2017:0286";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL6", reference:"openssl-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", reference:"openssl-debuginfo-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", reference:"openssl-devel-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"openssl-perl-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"openssl-perl-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"openssl-perl-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"openssl-static-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"openssl-static-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"openssl-static-1.0.1e-48.el6_8.4")) flag++;
if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openssl-1.0.1e-60.el7_3.1")) flag++;
if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openssl-1.0.1e-60.el7_3.1")) flag++;
if (rpm_check(release:"RHEL7", reference:"openssl-debuginfo-1.0.1e-60.el7_3.1")) flag++;
if (rpm_check(release:"RHEL7", reference:"openssl-devel-1.0.1e-60.el7_3.1")) flag++;
if (rpm_check(release:"RHEL7", reference:"openssl-libs-1.0.1e-60.el7_3.1")) flag++;
if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"openssl-perl-1.0.1e-60.el7_3.1")) flag++;
if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openssl-perl-1.0.1e-60.el7_3.1")) flag++;
if (rpm_check(release:"RHEL7", reference:"openssl-static-1.0.1e-60.el7_3.1")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssl / openssl-debuginfo / openssl-devel / openssl-libs / etc");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | openssl | p-cpe:/a:redhat:enterprise_linux:openssl |
redhat | enterprise_linux | openssl-debuginfo | p-cpe:/a:redhat:enterprise_linux:openssl-debuginfo |
redhat | enterprise_linux | openssl-devel | p-cpe:/a:redhat:enterprise_linux:openssl-devel |
redhat | enterprise_linux | openssl-libs | p-cpe:/a:redhat:enterprise_linux:openssl-libs |
redhat | enterprise_linux | openssl-perl | p-cpe:/a:redhat:enterprise_linux:openssl-perl |
redhat | enterprise_linux | openssl-static | p-cpe:/a:redhat:enterprise_linux:openssl-static |
redhat | enterprise_linux | 6 | cpe:/o:redhat:enterprise_linux:6 |
redhat | enterprise_linux | 7 | cpe:/o:redhat:enterprise_linux:7 |
redhat | enterprise_linux | 7.3 | cpe:/o:redhat:enterprise_linux:7.3 |
redhat | enterprise_linux | 7.4 | cpe:/o:redhat:enterprise_linux:7.4 |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.202 Low
EPSS
Percentile
96.4%