CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
EPSS
Percentile
89.8%
The ipa component provides centrally managed Identity, Policy, and Audit. The slapi-nis component provides NIS Server and Schema Compatibility plug- ins for Directory Server.
It was discovered that the IPA extdom Directory Server plug-in did not correctly perform memory reallocation when handling user account information. A request for a list of groups for a user that belongs to a large number of groups would cause a Directory Server to crash.
(CVE-2015-1827)
It was discovered that the slapi-nis Directory Server plug-in did not correctly perform memory reallocation when handling user account information. A request for information about a group with many members, or a request for a user that belongs to a large number of groups, would cause a Directory Server to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2015-0283)
This update fixes the following bugs :
Previously, users of IdM were not properly granted the default permission to read the ‘facsimiletelephonenumber’ user attribute. This update adds ‘facsimiletelephonenumber’ to the Access Control Instruction (ACI) for user data, which makes the attribute readable to authenticated users as expected.
Prior to this update, when a DNS zone was saved in an LDAP database without a dot character (.) at the end, internal DNS commands and operations, such as dnsrecord-* or dnszone-*, failed. With this update, DNS commands always supply the DNS zone with a dot character at the end, which prevents the described problem.
After a full-server IdM restore operation, the restored server in some cases contained invalid data. In addition, if the restored server was used to reinitialize a replica, the replica then contained invalid data as well. To fix this problem, the IdM API is now created correctly during the restore operation, and *.ldif files are not skipped during the removal of RUV data. As a result, the restored server and its replica no longer contain invalid data.
Previously, a deadlock in some cases occurred during an IdM upgrade, which could cause the IdM server to become unresponsive. With this update, the Schema Compatibility plug-in has been adjusted not to parse the subtree that contains the configuration of the DNA plug-in, which prevents this deadlock from triggering.
When using the extdom plug-in of IdM to handle large groups, user lookups and group lookups previously failed due to insufficient buffer size. With this update, the getgrgid_r() call gradually increases the buffer length if needed, and the described failure of extdom thus no longer occurs.
#%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(82293);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2015-0283", "CVE-2015-1827");
script_name(english:"Scientific Linux Security Update : ipa and slapi-nis on SL7.x x86_64 (20150326)");
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:
"The ipa component provides centrally managed Identity, Policy, and
Audit. The slapi-nis component provides NIS Server and Schema
Compatibility plug- ins for Directory Server.
It was discovered that the IPA extdom Directory Server plug-in did not
correctly perform memory reallocation when handling user account
information. A request for a list of groups for a user that belongs to
a large number of groups would cause a Directory Server to crash.
(CVE-2015-1827)
It was discovered that the slapi-nis Directory Server plug-in did not
correctly perform memory reallocation when handling user account
information. A request for information about a group with many
members, or a request for a user that belongs to a large number of
groups, would cause a Directory Server to enter an infinite loop and
consume an excessive amount of CPU time. (CVE-2015-0283)
This update fixes the following bugs :
- Previously, users of IdM were not properly granted the
default permission to read the
'facsimiletelephonenumber' user attribute. This update
adds 'facsimiletelephonenumber' to the Access Control
Instruction (ACI) for user data, which makes the
attribute readable to authenticated users as expected.
- Prior to this update, when a DNS zone was saved in an
LDAP database without a dot character (.) at the end,
internal DNS commands and operations, such as
dnsrecord-* or dnszone-*, failed. With this update, DNS
commands always supply the DNS zone with a dot character
at the end, which prevents the described problem.
- After a full-server IdM restore operation, the restored
server in some cases contained invalid data. In
addition, if the restored server was used to
reinitialize a replica, the replica then contained
invalid data as well. To fix this problem, the IdM API
is now created correctly during the restore operation,
and *.ldif files are not skipped during the removal of
RUV data. As a result, the restored server and its
replica no longer contain invalid data.
- Previously, a deadlock in some cases occurred during an
IdM upgrade, which could cause the IdM server to become
unresponsive. With this update, the Schema Compatibility
plug-in has been adjusted not to parse the subtree that
contains the configuration of the DNA plug-in, which
prevents this deadlock from triggering.
- When using the extdom plug-in of IdM to handle large
groups, user lookups and group lookups previously failed
due to insufficient buffer size. With this update, the
getgrgid_r() call gradually increases the buffer length
if needed, and the described failure of extdom thus no
longer occurs."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1503&L=scientific-linux-errata&T=0&P=4007
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?8c0178c1"
);
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:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ipa-admintools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ipa-client");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ipa-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ipa-python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ipa-server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ipa-server-trust-ad");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:slapi-nis");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:slapi-nis-debuginfo");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/03/30");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/26");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/27");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 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("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) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ipa-admintools-4.1.0-18.sl7_1.3")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ipa-client-4.1.0-18.sl7_1.3")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ipa-debuginfo-4.1.0-18.sl7_1.3")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ipa-python-4.1.0-18.sl7_1.3")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ipa-server-4.1.0-18.sl7_1.3")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ipa-server-trust-ad-4.1.0-18.sl7_1.3")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"slapi-nis-0.54-3.el7_1")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"slapi-nis-debuginfo-0.54-3.el7_1")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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, "ipa-admintools / ipa-client / ipa-debuginfo / ipa-python / etc");
}