CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
96.7%
Out-of-bounds read in fr_dhcp_decode_options() :
An out-of-bounds read flaw was found in the way FreeRADIUS server handles decoding of DHCP packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted DHCP request. (CVE-2017-10982)
Out-of-bounds read in fr_dhcp_decode() when decoding option 63 :
An out-of-bounds read flaw was found in the way FreeRADIUS server handled decoding of DHCP packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted DHCP request. (CVE-2017-10983)
Memory leak in decode_tlv() :
A memory leak flaw was found in the way FreeRADIUS server handles decoding of DHCP packets. A remote attacker could use this flaw to cause the FreeRADIUS server to consume an increasing amount of memory resources over time possibly leading to a crash due to memory exhaustion. (CVE-2017-10980)
Memory leak in fr_dhcp_decode() :
A memory leak flaw was found in the way FreeRADIUS server handles decoding of DHCP packets. A remote attacker could use this flaw to cause the FreeRADIUS server to consume an increasing amount of memory resources over time, possibly leading to a crash due to memory exhaustion, by sending specially crafted DHCP packets.
(CVE-2017-10981)
Out-of-bounds write in rad_coalesce() :
An out-of-bounds write flaw was found in the way FreeRADIUS server handled certain attributes in request packets. A remote attacker could use this flaw to crash the FreeRADIUS server or to execute arbitrary code in the context of the FreeRADIUS server process by sending a specially crafted request packet. (CVE-2017-10979)
Out-of-bounds read/write due to improper output buffer size check in make_secret() :
An out-of-bounds read and write flaw was found in the way FreeRADIUS server handled RADIUS packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted RADIUS packet. (CVE-2017-10978)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2017-865.
#
include("compat.inc");
if (description)
{
script_id(102180);
script_version("3.3");
script_cvs_date("Date: 2018/04/18 15:09:36");
script_cve_id("CVE-2017-10978", "CVE-2017-10979", "CVE-2017-10980", "CVE-2017-10981", "CVE-2017-10982", "CVE-2017-10983");
script_xref(name:"ALAS", value:"2017-865");
script_name(english:"Amazon Linux AMI : freeradius (ALAS-2017-865)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Amazon Linux AMI host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Out-of-bounds read in fr_dhcp_decode_options() :
An out-of-bounds read flaw was found in the way FreeRADIUS server
handles decoding of DHCP packets. A remote attacker could use this
flaw to crash the FreeRADIUS server by sending a specially crafted
DHCP request. (CVE-2017-10982)
Out-of-bounds read in fr_dhcp_decode() when decoding option 63 :
An out-of-bounds read flaw was found in the way FreeRADIUS server
handled decoding of DHCP packets. A remote attacker could use this
flaw to crash the FreeRADIUS server by sending a specially crafted
DHCP request. (CVE-2017-10983)
Memory leak in decode_tlv() :
A memory leak flaw was found in the way FreeRADIUS server handles
decoding of DHCP packets. A remote attacker could use this flaw to
cause the FreeRADIUS server to consume an increasing amount of memory
resources over time possibly leading to a crash due to memory
exhaustion. (CVE-2017-10980)
Memory leak in fr_dhcp_decode() :
A memory leak flaw was found in the way FreeRADIUS server handles
decoding of DHCP packets. A remote attacker could use this flaw to
cause the FreeRADIUS server to consume an increasing amount of memory
resources over time, possibly leading to a crash due to memory
exhaustion, by sending specially crafted DHCP packets.
(CVE-2017-10981)
Out-of-bounds write in rad_coalesce() :
An out-of-bounds write flaw was found in the way FreeRADIUS server
handled certain attributes in request packets. A remote attacker could
use this flaw to crash the FreeRADIUS server or to execute arbitrary
code in the context of the FreeRADIUS server process by sending a
specially crafted request packet. (CVE-2017-10979)
Out-of-bounds read/write due to improper output buffer size check in
make_secret() :
An out-of-bounds read and write flaw was found in the way FreeRADIUS
server handled RADIUS packets. A remote attacker could use this flaw
to crash the FreeRADIUS server by sending a specially crafted RADIUS
packet. (CVE-2017-10978)"
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2017-865.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update freeradius' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-krb5");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-mysql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-perl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-postgresql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-unixODBC");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeradius-utils");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2017/08/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/04");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2018 Tenable Network Security, Inc.");
script_family(english:"Amazon Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (rpm_check(release:"ALA", reference:"freeradius-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-debuginfo-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-krb5-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-ldap-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-mysql-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-perl-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-postgresql-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-python-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-unixODBC-2.2.6-7.16.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freeradius-utils-2.2.6-7.16.amzn1")) 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, "freeradius / freeradius-debuginfo / freeradius-krb5 / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10978
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10979
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10980
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10981
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10982
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10983
alas.aws.amazon.com/ALAS-2017-865.html
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
96.7%