openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1) - Nessus

High Plugin ID: 50367

This page contains detailed information about the openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1) 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: 50367
Name: openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1)
Filename: suse_11_1_glibc-101026.nasl
Vulnerability Published: N/A
This Plugin Published: 2010-10-28
Last Modification Time: 2021-01-14
Plugin Version: 1.12
Plugin Type: local
Plugin Family: SuSE Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list

Vulnerability Information

Synopsis

The remote openSUSE host is missing a security update.

Description

This update of glibc fixes various bugs and security issues :

CVE-2010-3847: Decoding of the $ORIGIN special value in various LD_ environment variables allowed local attackers to execute code in context of e.g. setuid root programs, elevating privileges. This issue does not affect SUSE as an assertion triggers before the respective code is executed. The bug was fixed nevertheless.

CVE-2010-3856: The LD_AUDIT environment was not pruned during setuid root execution and could load shared libraries from standard system library paths. This could be used by local attackers to inject code into setuid root programs and so elevated privileges.

CVE-2010-0830: Integer overflow causing arbitrary code execution in ld.so

--verify mode could be induced by a specially crafted binary.

CVE-2010-0296: The addmntent() function would not escape the newline character properly, allowing the user to insert arbitrary newlines to the /etc/mtab; if the addmntent() is run by a setuid mount binary that does not do extra input checking, this would allow custom entries to be inserted in /etc/mtab.

CVE-2008-1391: The strfmon() function contains an integer overflow vulnerability in width specifiers handling that could be triggered by an attacker that can control the format string passed to strfmon().

CVE-2010-0015: Some setups (mainly Solaris-based legacy setups) include shadow information (password hashes) as so-called 'adjunct passwd' table, mangling it with the rest of passwd columns instead of keeping it in the shadow table. Normally, Solaris will disclose this information only to clients bound to a priviledged port, but when nscd is deployed on the client, getpwnam() would disclose the password hashes to all users. New mode 'adjunct as shadow' can now be enabled in /etc/default/nss that will move the password hashes from the world-readable passwd table to emulated shadow table (that is not cached by nscd).

Some invalid behaviour, crashes and memory leaks were fixed :

- statfs64() would not function properly on IA64 in ia32el emulation mode.

- memcpy() and memset() on power6 would erroneously use a 64-bit instruction within 32-bit code in certain corner cases.

- nscd would not load /etc/host.conf properly before performing host resolution - most importantly, `multi on` in /etc/host.conf would be ignored when nscd was used, breaking e.g. resolving records in /etc/hosts where single name would point at multiple addresses

- Removed mapping from lowercase sharp s to uppercase sharp S; uppercase S is not a standardly used letter and causes problems for ISO encodings.

Some other minor issues were fixed :

- glibc-locale now better coexists with sap-locale on upgrades by regenerating the locale/gconv indexes properly.

- Ports 623 and 664 may not be allocated by RPC code automatically anymore since that may clash with ports used on some IPMI network cards.

- On x86_64, backtrace of a static destructor would stop in the _fini() glibc pseudo-routine, making it difficult to find out what originally triggered the program termination. The routine now has unwind information attached.

Solution

Update the affected glibc packages.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1) vulnerability:

Metasploit: exploit/linux/local/glibc_ld_audit_dso_load_priv_esc
[glibc LD_AUDIT Arbitrary DSO Load Privilege Escalation]
Metasploit: exploit/linux/local/glibc_origin_expansion_priv_esc
[glibc '$ORIGIN' Expansion Privilege Escalation]
Exploit-DB: exploits/linux/local/15274.txt
[EDB-15274: GNU C library dynamic linker - '$ORIGIN' Expansion]
Exploit-DB: exploits/linux/local/15304.txt
[EDB-15304: GNU C Library 2.x (libc6) - Dynamic Linker LD_AUDIT Arbitrary DSO Load Privilege Escalation]
Exploit-DB: exploits/linux/local/18105.sh
[EDB-18105: glibc - 'LD_AUDIT' Arbitrary DSO Load Privilege Escalation]
Exploit-DB: exploits/linux/local/44024.rb
[EDB-44024: glibc - '$ORIGIN' Expansion Privilege Escalation (Metasploit)]
Exploit-DB: exploits/linux/local/44025.rb
[EDB-44025: glibc - 'LD_AUDIT' Arbitrary DSO Load Privilege Escalation (Metasploit)]
GitHub: https://github.com/RedHatOfficial/rhsecapi
[CVE-2010-0296]
GitHub: https://github.com/RedHatProductSecurity/cve-pylib
[CVE-2010-0296]
GitHub: https://github.com/RedHatOfficial/rhsecapi
[CVE-2010-0830]
GitHub: https://github.com/RedHatProductSecurity/cve-pylib
[CVE-2010-0830]
GitHub: https://github.com/grzegorzblaszczyk/CVE-2010-4476-check
[CVE-2010-3847]
GitHub: https://github.com/0xdea/exploits
[CVE-2010-3856]
GitHub: https://github.com/packetforger/localroot
[CVE-2010-3856]
GitHub: https://github.com/magisterquis/cve-2010-3847
[CVE-2010-3847: Script to take advantage of CVE-2010-3847]
Immunity Canvas: CANVAS

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:L/Au:N/C:P/I:P/A:P

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.5 (High)

Go back to menu.

Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update glibc-3399.
#
# The text description of this plugin is (C) SUSE LLC.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(50367);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2008-1391", "CVE-2010-0015", "CVE-2010-0296", "CVE-2010-0830", "CVE-2010-3847", "CVE-2010-3856");

  script_name(english:"openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1)");
  script_summary(english:"Check for the glibc-3399 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update of glibc fixes various bugs and security issues :

CVE-2010-3847: Decoding of the $ORIGIN special value in various LD_
environment variables allowed local attackers to execute code in
context of e.g. setuid root programs, elevating privileges. This issue
does not affect SUSE as an assertion triggers before the respective
code is executed. The bug was fixed nevertheless.

CVE-2010-3856: The LD_AUDIT environment was not pruned during setuid
root execution and could load shared libraries from standard system
library paths. This could be used by local attackers to inject code
into setuid root programs and so elevated privileges.

CVE-2010-0830: Integer overflow causing arbitrary code execution in
ld.so

--verify mode could be induced by a specially crafted binary.

CVE-2010-0296: The addmntent() function would not escape the newline
character properly, allowing the user to insert arbitrary newlines to
the /etc/mtab; if the addmntent() is run by a setuid mount binary that
does not do extra input checking, this would allow custom entries to
be inserted in /etc/mtab.

CVE-2008-1391: The strfmon() function contains an integer overflow
vulnerability in width specifiers handling that could be triggered by
an attacker that can control the format string passed to strfmon().

CVE-2010-0015: Some setups (mainly Solaris-based legacy setups)
include shadow information (password hashes) as so-called 'adjunct
passwd' table, mangling it with the rest of passwd columns instead of
keeping it in the shadow table. Normally, Solaris will disclose this
information only to clients bound to a priviledged port, but when nscd
is deployed on the client, getpwnam() would disclose the password
hashes to all users. New mode 'adjunct as shadow' can now be enabled
in /etc/default/nss that will move the password hashes from the
world-readable passwd table to emulated shadow table (that is not
cached by nscd).

Some invalid behaviour, crashes and memory leaks were fixed :

  - statfs64() would not function properly on IA64 in ia32el
    emulation mode.

  - memcpy() and memset() on power6 would erroneously use a
    64-bit instruction within 32-bit code in certain corner
    cases.

  - nscd would not load /etc/host.conf properly before
    performing host resolution - most importantly, `multi
    on` in /etc/host.conf would be ignored when nscd was
    used, breaking e.g. resolving records in /etc/hosts
    where single name would point at multiple addresses

  - Removed mapping from lowercase sharp s to uppercase
    sharp S; uppercase S is not a standardly used letter and
    causes problems for ISO encodings.

Some other minor issues were fixed :

  - glibc-locale now better coexists with sap-locale on
    upgrades by regenerating the locale/gconv indexes
    properly.

  - Ports 623 and 664 may not be allocated by RPC code
    automatically anymore since that may clash with ports
    used on some IPMI network cards.

  - On x86_64, backtrace of a static destructor would stop
    in the _fini() glibc pseudo-routine, making it difficult
    to find out what originally triggered the program
    termination. The routine now has unwind information
    attached."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=375315"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=445636"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=513961"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=534828"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=537315"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=538067"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=541773"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=569091"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=572188"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=585879"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=592941"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=594263"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=615556"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=646960"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2010-10/msg00041.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected glibc packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:"metasploit_name", value:'glibc LD_AUDIT Arbitrary DSO Load Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');
  script_cwe_id(189, 255);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-devel-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-i18ndata");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-info");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-locale");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-locale-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-obsolete");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-profile");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:glibc-profile-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:nscd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/10/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/10/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE11\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE11.1", reference:"glibc-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"glibc-devel-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"glibc-html-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"glibc-i18ndata-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"glibc-info-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"glibc-locale-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"glibc-obsolete-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"glibc-profile-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", reference:"nscd-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", cpu:"x86_64", reference:"glibc-32bit-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", cpu:"x86_64", reference:"glibc-devel-32bit-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", cpu:"x86_64", reference:"glibc-locale-32bit-2.9-2.13.1") ) flag++;
if ( rpm_check(release:"SUSE11.1", cpu:"x86_64", reference:"glibc-profile-32bit-2.9-2.13.1") ) 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, "glibc");
}

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/suse_11_1_glibc-101026.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\suse_11_1_glibc-101026.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/suse_11_1_glibc-101026.nasl

Go back to menu.

How to Run

Here is how to run the openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1) 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 SuSE Local Security Checks plugin family.
On the right side table select openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1) plugin ID 50367.
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 suse_11_1_glibc-101026.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a suse_11_1_glibc-101026.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - suse_11_1_glibc-101026.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 suse_11_1_glibc-101026.nasl -t <IP/HOST>

Go back to menu.

References

CWE | Common Weakness Enumeration:

CWE-189 (Category) Numeric Errors
CWE-255 (Category) Credentials Management Errors

See also:

Similar and related Nessus plugins:

127161 - NewStart CGSL MAIN 5.04 : glibc Multiple Vulnerabilities (NS-SA-2019-0012)
46731 - Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS : glibc, eglibc vulnerabilities (USN-944-1)
46849 - Mandriva Linux Security Advisory : glibc (MDVSA-2010:111)
46861 - Debian DSA-2058-1 : glibc, eglibc - multiple vulnerabilities
48185 - Mandriva Linux Security Advisory : glibc (MDVSA-2010:112)
49758 - SuSE9 Security Update : glibc (YOU Patch Number 12641)
50036 - Fedora 14 : glibc-2.12.90-17 (2010-16308)
50076 - Mandriva Linux Security Advisory : glibc (MDVSA-2010:207)
50079 - RHEL 5 : glibc (RHSA-2010:0787)
50308 - Slackware 12.0 / 12.1 / 12.2 / 13.0 / 13.1 / current : glibc (SSA:2010-295-01)
50309 - Debian DSA-2122-1 : glibc - missing input sanitization
50312 - Fedora 13 : glibc-2.12.1-3 (2010-16594)
50318 - Ubuntu 8.04 LTS / 9.04 / 9.10 / 10.04 LTS / 10.10 : glibc, eglibc vulnerabilities (USN-1009-1)
50321 - Mandriva Linux Security Advisory : glibc (MDVSA-2010:212)
50341 - RHEL 5 : glibc (RHSA-2010:0793)
50373 - openSUSE Security Update : glibc (openSUSE-SU-2010:0913-1)
50377 - SuSE 10 Security Update : glibc (ZYPP Patch Number 7201)
50388 - Slackware 12.0 / 12.1 / 12.2 / 13.0 / 13.1 / current : glibc (SSA:2010-301-01)
50399 - Fedora 13 : glibc-2.12.1-4 (2010-16655)
50401 - Fedora 14 : glibc-2.12.90-18 (2010-16851)
50421 - Fedora 12 : glibc-2.11.2-3 (2010-16641)
50605 - GLSA-201011-01 : GNU C library: Multiple vulnerabilities
50640 - RHEL 6 : glibc (RHSA-2010:0872)
50795 - CentOS 5 : glibc (CESA-2010:0787)
50798 - CentOS 5 : glibc (CESA-2010:0793)
50912 - SuSE 11 / 11.1 Security Update : glibc (SAT Patch Numbers 3392 / 3393)
51422 - VMSA-2011-0001 : VMware ESX third-party updates for Service Console packages glibc, sudo, and openldap
51501 - Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : eglibc, glibc vulnerability (USN-1009-2)
51601 - SuSE 11.1 Security Update : glibc (SAT Patch Number 2700)
53291 - RHEL 5 : glibc (RHSA-2011:0412)
53292 - RHEL 6 : glibc (RHSA-2011:0413)
53430 - CentOS 5 : glibc (CESA-2011:0412)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file suse_11_1_glibc-101026.nasl version 1.12. For more plugins, visit the Nessus Plugin Library.

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openSUSE Security Update : glibc (openSUSE-SU-2010:0914-1) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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