Debian DSA-2122-1 : glibc - missing input sanitization - Nessus

High Plugin ID: 50309

This page contains detailed information about the Debian DSA-2122-1 : glibc - missing input sanitization 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: 50309
Name: Debian DSA-2122-1 : glibc - missing input sanitization
Filename: debian_DSA-2122.nasl
Vulnerability Published: N/A
This Plugin Published: 2010-10-24
Last Modification Time: 2021-01-04
Plugin Version: 1.17
Plugin Type: local
Plugin Family: Debian Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/Debian/dpkg-l, Host/Debian/release, Host/local_checks_enabled

Vulnerability Information

Severity: High
Vulnerability Published: N/A
Patch Published: 2010-10-22
CVE [?]: CVE-2010-3847, CVE-2010-3856
CPE [?]: cpe:/o:debian:debian_linux:5.0, p-cpe:/a:debian:debian_linux:glibc

Synopsis

The remote Debian host is missing a security-related update.

Description

Ben Hawkes and Tavis Ormandy discovered that the dynamic loader in GNU libc allows local users to gain root privileges using a crafted LD_AUDIT environment variable.

Solution

Upgrade the glibc packages.

For the stable distribution (lenny), this problem has been fixed in version 2.7-18lenny6.

For the upcoming stable distribution (squeeze), this problem has been fixed in version 2.11.2-6+squeeze1 of the eglibc package.

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 Debian DSA-2122-1 : glibc - missing input sanitization 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/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:L/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	6.0 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.0 (Medium)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2122. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(50309);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2010-3847", "CVE-2010-3856");
  script_bugtraq_id(44154);
  script_xref(name:"DSA", value:"2122");

  script_name(english:"Debian DSA-2122-1 : glibc - missing input sanitization");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Ben Hawkes and Tavis Ormandy discovered that the dynamic loader in GNU
libc allows local users to gain root privileges using a crafted
LD_AUDIT environment variable."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=600667"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2010/dsa-2122"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the glibc packages.

For the stable distribution (lenny), this problem has been fixed in
version 2.7-18lenny6.

For the upcoming stable distribution (squeeze), this problem has been
fixed in version 2.11.2-6+squeeze1 of the eglibc package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC: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:"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_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:glibc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/10/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/10/24");
  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:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"5.0", prefix:"glibc-doc", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"glibc-source", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-amd64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dbg", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-amd64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-i386", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-mips64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-mipsn32", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-ppc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-s390x", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-dev-sparc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-i386", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-i686", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-mips64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-mipsn32", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-pic", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-ppc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-prof", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-s390x", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-sparc64", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-sparcv9b", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6-xen", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-alphaev67", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-dbg", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-dev", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-pic", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"libc6.1-prof", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"locales", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"locales-all", reference:"2.7-18lenny6")) flag++;
if (deb_check(release:"5.0", prefix:"nscd", reference:"2.7-18lenny6")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/debian_DSA-2122.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DSA-2122.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/debian_DSA-2122.nasl

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How to Run

Here is how to run the Debian DSA-2122-1 : glibc - missing input sanitization 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 Debian Local Security Checks plugin family.
On the right side table select Debian DSA-2122-1 : glibc - missing input sanitization plugin ID 50309.
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 debian_DSA-2122.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a debian_DSA-2122.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - debian_DSA-2122.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 debian_DSA-2122.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

44154

DSA | Debian Security Advisory:

2122

See also:

Similar and related Nessus plugins:

50795 - CentOS 5 : glibc (CESA-2010:0787)
50036 - Fedora 14 : glibc-2.12.90-17 (2010-16308)
50312 - Fedora 13 : glibc-2.12.1-3 (2010-16594)
50421 - Fedora 12 : glibc-2.11.2-3 (2010-16641)
50605 - GLSA-201011-01 : GNU C library: Multiple vulnerabilities
71167 - GLSA-201312-01 : GNU C Library: Multiple vulnerabilities
50076 - Mandriva Linux Security Advisory : glibc (MDVSA-2010:207)
68123 - Oracle Linux 5 : glibc (ELSA-2010-0787)
68141 - Oracle Linux 6 : glibc (ELSA-2010-0872)
81118 - OracleVM 3.2 : glibc (OVMSA-2015-0023) (GHOST)
50079 - RHEL 5 : glibc (RHSA-2010:0787)
50640 - RHEL 6 : glibc (RHSA-2010:0872)
50308 - Slackware 12.0 / 12.1 / 12.2 / 13.0 / 13.1 / current : glibc (SSA:2010-295-01)
50318 - Ubuntu 8.04 LTS / 9.04 / 9.10 / 10.04 LTS / 10.10 : glibc, eglibc vulnerabilities (USN-1009-1)
51501 - Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : eglibc, glibc vulnerability (USN-1009-2)
51422 - VMSA-2011-0001 : VMware ESX third-party updates for Service Console packages glibc, sudo, and openldap
89673 - VMware ESX Third-Party Libraries Multiple Vulnerabilities (VMSA-2011-0001) (remote check)
55747 - VMSA-2011-0010 : VMware ESX third-party updates for Service Console packages glibc and dhcp
89679 - VMware ESX Third-Party Libraries Multiple Vulnerabilities (VMSA-2011-0010) (remote check)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DSA-2122.nasl version 1.17. For more plugins, visit the Nessus Plugin Library.

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Debian DSA-2122-1 : glibc - missing input sanitization - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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