An update for wpa_supplicant is now available for Red Hat Enterprise Linux 6.
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.
The wpa_supplicant packages contain an 802.1X Supplicant with support for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication methods. They implement key negotiation with a WPA Authenticator for client stations and controls the roaming and IEEE 802.11 authentication and association of the WLAN driver.
Security Fix(es) :
Red Hat would like to thank CERT for reporting these issues. Upstream acknowledges Mathy Vanhoef (University of Leuven) as the original reporter of these issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2017:2911. The text
# itself is copyright (C) Red Hat, Inc.
#
include("compat.inc");
if (description)
{
script_id(103958);
script_version("3.18");
script_cvs_date("Date: 2019/10/24 15:35:43");
script_cve_id("CVE-2017-13077", "CVE-2017-13078", "CVE-2017-13080", "CVE-2017-13087");
script_xref(name:"RHSA", value:"2017:2911");
script_xref(name:"IAVA", value:"2017-A-0310");
script_name(english:"RHEL 6 : wpa_supplicant (RHSA-2017:2911) (KRACK)");
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 wpa_supplicant is now available for Red Hat Enterprise
Linux 6.
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.
The wpa_supplicant packages contain an 802.1X Supplicant with support
for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP
authentication methods. They implement key negotiation with a WPA
Authenticator for client stations and controls the roaming and IEEE
802.11 authentication and association of the WLAN driver.
Security Fix(es) :
* A new exploitation technique called key reinstallation attacks
(KRACK) affecting WPA2 has been discovered. A remote attacker within
Wi-Fi range could exploit these attacks to decrypt Wi-Fi traffic or
possibly inject forged Wi-Fi packets by manipulating cryptographic
handshakes used by the WPA2 protocol. (CVE-2017-13077, CVE-2017-13078,
CVE-2017-13080, CVE-2017-13087)
Red Hat would like to thank CERT for reporting these issues. Upstream
acknowledges Mathy Vanhoef (University of Leuven) as the original
reporter of these issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/vulnerabilities/kracks"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2017:2911"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2017-13077"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2017-13078"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2017-13080"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2017-13087"
);
script_set_attribute(
attribute:"solution",
value:
"Update the affected wpa_supplicant and / or wpa_supplicant-debuginfo
packages."
);
script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N");
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:wpa_supplicant");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:wpa_supplicant-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/17");
script_set_attribute(attribute:"patch_publication_date", value:"2017/10/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/19");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"II");
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([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "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-2017:2911";
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", cpu:"i686", reference:"wpa_supplicant-0.7.3-9.el6_9.2")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"wpa_supplicant-0.7.3-9.el6_9.2")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"wpa_supplicant-0.7.3-9.el6_9.2")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"wpa_supplicant-debuginfo-0.7.3-9.el6_9.2")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"wpa_supplicant-debuginfo-0.7.3-9.el6_9.2")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"wpa_supplicant-debuginfo-0.7.3-9.el6_9.2")) 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, "wpa_supplicant / wpa_supplicant-debuginfo");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | wpa_supplicant | p-cpe:/a:redhat:enterprise_linux:wpa_supplicant |
redhat | enterprise_linux | wpa_supplicant-debuginfo | p-cpe:/a:redhat:enterprise_linux:wpa_supplicant-debuginfo |
redhat | enterprise_linux | 6 | cpe:/o:redhat:enterprise_linux:6 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13077
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13078
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13080
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13087
access.redhat.com/errata/RHSA-2017:2911
access.redhat.com/security/cve/cve-2017-13077
access.redhat.com/security/cve/cve-2017-13078
access.redhat.com/security/cve/cve-2017-13080
access.redhat.com/security/cve/cve-2017-13087
access.redhat.com/security/vulnerabilities/kracks