Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST) - Nessus

High Plugin ID: 81038

This page contains detailed information about the Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 81038
Name: Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST)
Filename: sl_20150127_glibc_on_SL6_x.nasl
Vulnerability Published: 2015-01-28
This Plugin Published: 2015-01-28
Last Modification Time: 2021-01-14
Plugin Version: 1.17
Plugin Type: local
Plugin Family: Scientific Linux Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Vulnerability Information

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

A heap-based buffer overflow was found in glibc's __nss_hostname_digits_dots() function, which is used by the gethostbyname() and gethostbyname2() glibc function calls. A remote attacker able to make an application call either of these functions could use this flaw to execute arbitrary code with the permissions of the user running the application. (CVE-2015-0235)

Solution

Update the affected packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub, Core Impact)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST) vulnerability:

Metasploit: exploit/linux/smtp/exim_gethostbyname_bof
[Exim GHOST (glibc gethostbyname) Buffer Overflow]
Metasploit: auxiliary/scanner/http/wordpress_ghost_scanner
[WordPress XMLRPC GHOST Vulnerability Scanner]
Exploit-DB: exploits/linux/dos/35951.py
[EDB-35951: Exim ESMTP 4.80 - glibc gethostbyname Denial of Service]
Exploit-DB: exploits/linux/remote/36421.rb
[EDB-36421: Exim - 'GHOST' glibc gethostbyname Buffer Overflow (Metasploit)]
GitHub: https://github.com/1N3/1N3
[CVE-2015-0235]
GitHub: https://github.com/1N3/Exploits
[CVE-2015-0235]
GitHub: https://github.com/AlAIAL90/CVE-2015-0235
[CVE-2015-0235: PoC for exploiting CVE-2015-0235 : Heap-based buffer overflow in the ...]
GitHub: https://github.com/F88/ghostbusters15
[CVE-2015-0235: Playbooks 'Fix for CVE-2015-0235(GHOST)' running on Ansible]
GitHub: https://github.com/JustDenisYT/ghosttester
[CVE-2015-0235: Script to test vulnarability for CVE-2015-0235]
GitHub: https://github.com/RedHatOfficial/rhsecapi
[CVE-2015-0235]
GitHub: https://github.com/RedHatProductSecurity/cve-pylib
[CVE-2015-0235]
GitHub: https://github.com/aaronfay/CVE-2015-0235-test
[CVE-2015-0235: Ansible playbook to check vulnerability for CVE-2015-0235]
GitHub: https://github.com/adherzog/ansible-CVE-2015-0235-GHOST
[CVE-2015-0235: Ansible playbook, to check for CVE-2015-0235 (GHOST) vulnerability]
GitHub: https://github.com/alanmeyer/CVE-glibc
[CVE-2015-0235]
GitHub: https://github.com/arm13/ghost_exploit
[CVE-2015-0235: CVE-2015-0235 EXIM ESTMP GHOST Glibc Gethostbyname() DoS Exploit/PoC]
GitHub: https://github.com/chayim/GHOSTCHECK-cve-2015-0235
[CVE-2015-0235: A check for GHOST; cve-2015-0235]
GitHub: https://github.com/dineshkumarc987/Exploits
[CVE-2015-0235]
GitHub: https://github.com/favoretti/lenny-libc6
[CVE-2015-0235: CVE-2015-0235 patches lenny libc6 packages for amd64]
GitHub: https://github.com/fser/ghost-checker
[CVE-2015-0235: Test wether you're exposed to ghost (CVE-2015-0235). All kudos go to Qualys Security ...]
GitHub: https://github.com/geekben/cve-collections/blob/master/cve20150235poc.c
[CVE-2015-0235]
GitHub: https://github.com/limkokholefork/GHOSTCHECK-cve-2015-0235
[CVE-2015-0235]
GitHub: https://github.com/limkokhole/GHOSTCHECK-cve-2015-0235
[CVE-2015-0235]
GitHub: https://github.com/makelinux/CVE-2015-0235-workaround
[CVE-2015-0235: A shared library wrapper with additional checks for vulnerable functions ...]
GitHub: https://github.com/mholzinger/CVE-2015-0235_GHOST
[CVE-2015-0235]
GitHub: https://github.com/mikesplain/CVE-2015-0235-cookbook
[CVE-2015-0235: A chef cookbook to test the GHOST vulnerability]
GitHub: https://github.com/r3p3r/1N3-Exploits
[CVE-2015-0235]
GitHub: https://github.com/sUbc0ol/CVE-2015-0235
[CVE-2015-0235]
GitHub: https://github.com/xyongcn/exploit
[CVE-2015-0235]
GitHub: https://github.com/koudaiii-archives/cookbook-update-glibc
[CVE-2015-0235: Cookbook for update glibc. CVE-2015-0235(GHOST)]
GitHub: https://github.com/nickanderson/cfengine-CVE_2015_0235
[CVE-2015-0235: Gethostbyname*() buffer overflow exploit in glibc - CVE-2015-0235 ...]
GitHub: https://github.com/piyokango/ghost
[CVE-2015-0235: Glibc vulnerability GHOST(CVE-2015-0235) Affected software list]
GitHub: https://github.com/tobyzxj/CVE-2015-0235
[CVE-2015-0235: Glibc gethostbyname bug]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Base Score:	7.6 (High)
Impact Subscore:	10.0
Exploitability Subscore:	4.9
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.6 (High)

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Plugin Source

#%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(81038);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2015-0235");
  script_xref(name:"CERT", value:"967332");

  script_name(english:"Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST)");
  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 heap-based buffer overflow was found in glibc's
__nss_hostname_digits_dots() function, which is used by the
gethostbyname() and gethostbyname2() glibc function calls. A remote
attacker able to make an application call either of these functions
could use this flaw to execute arbitrary code with the permissions of
the user running the application. (CVE-2015-0235)"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1501&L=scientific-linux-errata&T=0&P=2821
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?c384376c"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Exim GHOST (glibc gethostbyname) Buffer Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc-debuginfo-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nscd");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/01/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/01/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/01/28");
  script_set_attribute(attribute:"in_the_news", value:"true");
  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);


flag = 0;
if (rpm_check(release:"SL6", reference:"glibc-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"glibc-common-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"glibc-debuginfo-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"glibc-debuginfo-common-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"glibc-devel-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"glibc-headers-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"glibc-static-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"glibc-utils-2.12-1.149.el6_6.5")) flag++;
if (rpm_check(release:"SL6", reference:"nscd-2.12-1.149.el6_6.5")) flag++;

if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-common-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-debuginfo-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-debuginfo-common-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-devel-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-headers-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-static-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-utils-2.17-55.el7_0.5")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"nscd-2.17-55.el7_0.5")) 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, "glibc / glibc-common / glibc-debuginfo / glibc-debuginfo-common / etc");
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/sl_20150127_glibc_on_SL6_x.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\sl_20150127_glibc_on_SL6_x.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/sl_20150127_glibc_on_SL6_x.nasl

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How to Run

Here is how to run the Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Scientific Linux Local Security Checks plugin family.
On the right side table select Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST) plugin ID 81038.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl sl_20150127_glibc_on_SL6_x.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a sl_20150127_glibc_on_SL6_x.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - sl_20150127_glibc_on_SL6_x.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state sl_20150127_glibc_on_SL6_x.nasl -t <IP/HOST>

Go back to menu.

References

CERT | Computer Emergency Response Team:

967332

See also:

Similar and related Nessus plugins:

81024 - Amazon Linux AMI : glibc (ALAS-2015-473)
81025 - CentOS 5 : glibc (CESA-2015:0090) (GHOST)
81026 - CentOS 6 / 7 : glibc (CESA-2015:0092) (GHOST)
81546 - Cisco Unified Communications Manager Remote Buffer Overflow (CSCus66650) (GHOST)
85449 - Cisco Unified Communications Manager IM and Presence GNU C Library (glibc) Buffer Overflow (CSCus69785) (GHOST)
81423 - Cisco Application Control Engine GNU glibc gethostbyname Function Buffer Overflow Vulnerability (cisco-sa-20150128-ghost) (GHOST)
81594 - Cisco IOS XE GNU C Library (glibc) Buffer Overflow (CSCus69732) (GHOST)
81595 - Cisco IOS XE GNU GNU C Library (glibc) Buffer Overflow (CSCus69731) (GHOST)
81596 - Cisco IOS XR GNU C Library (glibc) Buffer Overflow (GHOST)
92412 - Cisco NX-OS GNU C Library (glibc) Buffer Overflow (GHOST)
81407 - Cisco TelePresence Conductor GNU glibc gethostbyname Function Buffer Overflow Vulnerability (GHOST)
81408 - Cisco TelePresence Video Communication Server GNU glibc gethostbyname Function Buffer Overflow Vulnerability (GHOST)
81029 - Debian DSA-3142-1 : eglibc - security update
84488 - Mac OS X 10.10.x < 10.10.4 Multiple Vulnerabilities (GHOST) (Logjam)
86270 - Mac OS X < 10.11 Multiple Vulnerabilities (GHOST)
84489 - Mac OS X Multiple Vulnerabilities (Security Update 2015-005) (GHOST) (Logjam)
81031 - Oracle Linux 6 / 7 : glibc (ELSA-2015-0092) (GHOST)
81167 - Palo Alto Networks PAN-OS <= 5.0.15 / 6.0.x <= 6.0.8 / 6.1.x <= 6.1.2 GNU C Library (glibc) Buffer Overflow (GHOST)
81510 - PHP 5.4.x < 5.4.38 Multiple Vulnerabilities (GHOST)
81511 - PHP 5.5.x < 5.5.22 Multiple Vulnerabilities (GHOST)
81512 - PHP 5.6.x < 5.6.6 Multiple Vulnerabilities (GHOST)
81033 - RHEL 5 : glibc (RHSA-2015:0090) (GHOST)
81034 - RHEL 6 / 7 : glibc (RHSA-2015:0092) (GHOST)
81037 - Scientific Linux Security Update : glibc on SL5.x i386/x86_64 (20150127) (GHOST)
81039 - SuSE 11 Security Update : glibc (SAT Patch Numbers 10202,10204,10206)
81125 - SuSE 10 Security Update : glibc (ZYPP Patch Number 9035)
81042 - Ubuntu 10.04 LTS / 12.04 LTS : eglibc vulnerability (USN-2485-1) (GHOST)
87322 - Xerox ColorQube 92XX Multiple OpenSSL Vulnerabilities (XRX15AD) (FREAK) (GHOST) (POODLE)
87327 - Xerox WorkCentre 77XX Multiple Vulnerabilities (XRX15R) (FREAK) (GHOST)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file sl_20150127_glibc_on_SL6_x.nasl version 1.17. For more plugins, visit the Nessus Plugin Library.

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Scientific Linux Security Update : glibc on SL6.x, SL7.x i386/x86_64 (20150127) (GHOST) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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