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nessusThis script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.SL_20120808_OPENLDAP_ON_SL6_X.NASL
HistoryAug 09, 2012 - 12:00 a.m.

Scientific Linux Security Update : openldap on SL6.x i386/x86_64 (20120808)

2012-08-0900:00:00
This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
12

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

EPSS

0.007

Percentile

79.9%

It was found that the OpenLDAP server daemon ignored olcTLSCipherSuite settings. This resulted in the default cipher suite always being used, which could lead to weaker than expected ciphers being accepted during Transport Layer Security (TLS) negotiation with OpenLDAP clients.
(CVE-2012-2668)

This update also fixes the following bug :

  • When the smbk5pwd overlay was enabled in an OpenLDAP server, and a user changed their password, the Microsoft NT LAN Manager (NTLM) and Microsoft LAN Manager (LM) hashes were not computed correctly. This led to the sambaLMPassword and sambaNTPassword attributes being updated with incorrect values, preventing the user logging in using a Windows-based client or a Samba client.

With this update, the smbk5pwd overlay is linked against OpenSSL. As such, the NTLM and LM hashes are computed correctly, and password changes work as expected when using smbk5pwd. (BZ#844428)

After installing this update, the OpenLDAP daemons 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(61455);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2012-2668");

  script_name(english:"Scientific Linux Security Update : openldap on SL6.x i386/x86_64 (20120808)");
  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:
"It was found that the OpenLDAP server daemon ignored olcTLSCipherSuite
settings. This resulted in the default cipher suite always being used,
which could lead to weaker than expected ciphers being accepted during
Transport Layer Security (TLS) negotiation with OpenLDAP clients.
(CVE-2012-2668)

This update also fixes the following bug :

  - When the smbk5pwd overlay was enabled in an OpenLDAP
    server, and a user changed their password, the Microsoft
    NT LAN Manager (NTLM) and Microsoft LAN Manager (LM)
    hashes were not computed correctly. This led to the
    sambaLMPassword and sambaNTPassword attributes being
    updated with incorrect values, preventing the user
    logging in using a Windows-based client or a Samba
    client.

With this update, the smbk5pwd overlay is linked against OpenSSL. As
such, the NTLM and LM hashes are computed correctly, and password
changes work as expected when using smbk5pwd. (BZ#844428)

After installing this update, the OpenLDAP daemons will be restarted
automatically."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=844428"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1208&L=scientific-linux-errata&T=0&P=1123
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ab8d6b6b"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openldap-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openldap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openldap-servers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openldap-servers-sql");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/06/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/09");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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("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:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 6.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);


flag = 0;
if (rpm_check(release:"SL6", reference:"openldap-2.4.23-26.el6_3.2")) flag++;
if (rpm_check(release:"SL6", reference:"openldap-clients-2.4.23-26.el6_3.2")) flag++;
if (rpm_check(release:"SL6", reference:"openldap-devel-2.4.23-26.el6_3.2")) flag++;
if (rpm_check(release:"SL6", reference:"openldap-servers-2.4.23-26.el6_3.2")) flag++;
if (rpm_check(release:"SL6", reference:"openldap-servers-sql-2.4.23-26.el6_3.2")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "openldap / openldap-clients / openldap-devel / openldap-servers / etc");
}
VendorProductVersionCPE
fermilabscientific_linuxopenldap-clientsp-cpe:/a:fermilab:scientific_linux:openldap-clients
fermilabscientific_linuxopenldapp-cpe:/a:fermilab:scientific_linux:openldap
fermilabscientific_linuxx-cpe:/o:fermilab:scientific_linux
fermilabscientific_linuxopenldap-serversp-cpe:/a:fermilab:scientific_linux:openldap-servers
fermilabscientific_linuxopenldap-develp-cpe:/a:fermilab:scientific_linux:openldap-devel
fermilabscientific_linuxopenldap-servers-sqlp-cpe:/a:fermilab:scientific_linux:openldap-servers-sql

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

EPSS

0.007

Percentile

79.9%