Debian DLA-375-1 : libpng Security Update - Nessus

High Plugin ID: 92678

This page contains detailed information about the Debian DLA-375-1 : libpng Security Update 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: 92678
Name: Debian DLA-375-1 : libpng Security Update
Filename: debian_DLA-375-1.nasl
Vulnerability Published: 2012-04-08
This Plugin Published: 2016-08-02
Last Modification Time: 2021-01-11
Plugin Version: 1.7
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: 2012-04-08
Patch Published: 2015-12-27
CVE [?]: CVE-2012-3425, CVE-2015-8472, CVE-2015-8540
CPE [?]: cpe:/o:debian:debian_linux:6.0, p-cpe:/a:debian:debian_linux:libpng3, p-cpe:/a:debian:debian_linux:libpng12-0, p-cpe:/a:debian:debian_linux:libpng12-0-udeb, p-cpe:/a:debian:debian_linux:libpng12-dev

Synopsis

The remote Debian host is missing a security update.

Description

The remote Debian host is running a version of libpng prior to 1.2.44-1+squeeze6. It is, therefore, affected by the following vulnerabilities :

- An out-of-bounds read error exists in the png_push_read_zTXt() function within file pngpread.c when decompressing PNG images. An unauthenticated, remote attacker can exploit this, via a large 'avail_in' field to cause a denial of service condition. (CVE-2012-3425)

- A buffer overflow condition exists in the png_set_PLTE() function within file pngset.c and the png_get_PLTE() function within file pngget.c when handling bit-depth values less than 8. An unauthenticated, remote attacker can exploit this, via a specially crafted IHDR chunk in a PNG image, to cause a denial of service or have other unspecified impact. (CVE-2015-8472)

- An integer underflow condition exists in the png_check_keyword() function within file pngwutil.c. An unauthenticated, remote attacker can exploit this, via a specially crafted PNG image using a space character as a keyword, to cause a denial of service condition or other unspecified impact. (CVE-2015-8540)

Solution

Upgrade the affected packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits (PoCs) are available

Here's the list of publicly known exploits and PoCs for verifying the Debian DLA-375-1 : libpng Security Update vulnerability:

GitHub: https://github.com/project-zot/zot
[CVE-2015-8540]

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:M/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C

CVSS Base Score:	9.3 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.6
CVSS Temporal Score:	6.9 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.9 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS Base Score:	8.8 (High)
Impact Subscore:	5.9
Exploitability Subscore:	2.8
CVSS Temporal Score:	7.7 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.7 (High)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were
# extracted from Debian Security Advisory DLA-375-1.
#

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

if (description)
{
  script_id(92678);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id(
    "CVE-2012-3425",
    "CVE-2015-8472",
    "CVE-2015-8540"
  );
  script_bugtraq_id(
    54652,
    78624,
    80592
  );

  script_name(english:"Debian DLA-375-1 : libpng Security Update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian host is running a version of libpng prior to
1.2.44-1+squeeze6. It is, therefore, affected by the following
vulnerabilities :

  - An out-of-bounds read error exists in the
    png_push_read_zTXt() function within file pngpread.c
    when decompressing PNG images. An unauthenticated,
    remote attacker can exploit this, via a large 'avail_in'
    field to cause a denial of service condition.
    (CVE-2012-3425)

  - A buffer overflow condition exists in the png_set_PLTE()
    function within file pngset.c and the png_get_PLTE()
    function within file pngget.c when handling bit-depth
    values less than 8. An unauthenticated, remote attacker
    can exploit this, via a specially crafted IHDR chunk
    in a PNG image, to cause a denial of service or have
    other unspecified impact. (CVE-2015-8472)

  - An integer underflow condition exists in the
    png_check_keyword() function within file pngwutil.c. An
    unauthenticated, remote attacker can exploit this, via a
    specially crafted PNG image using a space character as
    a keyword, to cause a denial of service condition or
    other unspecified impact. (CVE-2015-8540)");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2015/12/msg00017.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/04/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpng12-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpng12-0-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpng12-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpng3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2016-2021 Tenable Network Security, Inc.");

  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:"6.0", prefix:"libpng12-0", reference:"1.2.44-1+squeeze6")) flag++;
if (deb_check(release:"6.0", prefix:"libpng12-0-udeb", reference:"1.2.44-1+squeeze6")) flag++;
if (deb_check(release:"6.0", prefix:"libpng12-dev", reference:"1.2.44-1+squeeze6")) flag++;
if (deb_check(release:"6.0", prefix:"libpng3", reference:"1.2.44-1+squeeze6")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : deb_report_get()
  );
  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_DLA-375-1.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DLA-375-1.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/debian_DLA-375-1.nasl

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How to Run

Here is how to run the Debian DLA-375-1 : libpng Security Update 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 DLA-375-1 : libpng Security Update plugin ID 92678.
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_DLA-375-1.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a debian_DLA-375-1.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - debian_DLA-375-1.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_DLA-375-1.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

54652, 78624, 80592

See also:

Similar and related Nessus plugins:

89053 - AIX Java Advisory : java_jan2016_advisory.asc (January 2016 CPU) (SLOTH)
90096 - Mac OS X 10.11.x < 10.11.4 Multiple Vulnerabilities
90097 - Mac OS X 10.9.5 / 10.10.5 Multiple Vulnerabilities (Security Update 2016-002)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DLA-375-1.nasl version 1.7. For more plugins, visit the Nessus Plugin Library.

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Debian DLA-375-1 : libpng Security Update - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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