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
EPSS
Percentile
95.8%
A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC processed principal names that were not null terminated, when the KDC was configured to use an LDAP back end. A remote attacker could use this flaw to crash the KDC via a specially crafted request.
(CVE-2011-0282)
A denial of service flaw was found in the way the MIT Kerberos KDC processed certain principal names when the KDC was configured to use an LDAP back end. A remote attacker could use this flaw to cause the KDC to hang via a specially crafted request. (CVE-2011-0281)
After installing the updated packages, the krb5kdc daemon will be restarted automatically.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(60952);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2011-0281", "CVE-2011-0282");
script_name(english:"Scientific Linux Security Update : krb5 on SL5.x i386/x86_64");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"A NULL pointer dereference flaw was found in the way the MIT Kerberos
KDC processed principal names that were not null terminated, when the
KDC was configured to use an LDAP back end. A remote attacker could
use this flaw to crash the KDC via a specially crafted request.
(CVE-2011-0282)
A denial of service flaw was found in the way the MIT Kerberos KDC
processed certain principal names when the KDC was configured to use
an LDAP back end. A remote attacker could use this flaw to cause the
KDC to hang via a specially crafted request. (CVE-2011-0281)
After installing the updated packages, the krb5kdc daemon will be
restarted automatically."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1102&L=scientific-linux-errata&T=0&P=989
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?472cad9b"
);
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_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"patch_publication_date", value:"2011/02/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL5", reference:"krb5-devel-1.6.1-55.el5_6.1")) flag++;
if (rpm_check(release:"SL5", reference:"krb5-libs-1.6.1-55.el5_6.1")) flag++;
if (rpm_check(release:"SL5", reference:"krb5-server-1.6.1-55.el5_6.1")) flag++;
if (rpm_check(release:"SL5", reference:"krb5-server-ldap-1.6.1-55.el5_6.1")) flag++;
if (rpm_check(release:"SL5", reference:"krb5-workstation-1.6.1-55.el5_6.1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");