Vulnerabilities > CVE-2013-4032 - Improper Input Validation vulnerability in IBM DB2 10.1/10.5

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
ibm
CWE-20
nessus
NVD
Published: 2013-10-02
Updated: 2017-08-29

Summary

The Fast Communications Manager (FCM) in IBM DB2 Enterprise Server Edition and Advanced Enterprise Server Edition 10.1 before FP3 and 10.5, when a multi-node configuration is used, allows remote attackers to cause a denial of service via vectors involving arbitrary data.

Vulnerable Configurations

Part Description Count
Application
Ibm
2

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyDatabases
    NASL idDB2_101FP3.NASL
    descriptionAccording to its version, the installation of IBM DB2 10.1 running on the remote host is affected by the following vulnerabilities : - A stack-based buffer overflow error exists related to input validation in the Audit facility and could lead to privilege escalation and denial of service attacks. Note this issue does not affected installs on the Windows operating system. (CVE-2013-3475 / IC92498) - When a multi-node configuration is used, an error exists in the Fast Communications Manager (FCM) that could allow denial of service attacks. (CVE-2013-4032 / IC94434) - An unspecified error exists that could allow an attacker to gain SELECT, INSERT, UPDATE, or DELETE permissions to database tables. Note that successful exploitation requires the rights EXPLAIN, SQLADM, or DBADM. (CVE-2013-4033 / IC94757)
    last seen2020-06-01
    modified2020-06-02
    plugin id70455
    published2013-10-16
    reporterThis script is Copyright (C) 2013-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/70455
    titleIBM DB2 10.1 < Fix Pack 3 Multiple Vulnerabilities
    code
    #
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if (description)
{
  script_id(70455);
  script_version("1.9");
  script_cvs_date("Date: 2018/07/06 11:26:06");

  script_cve_id("CVE-2013-3475", "CVE-2013-4032", "CVE-2013-4033");
  script_bugtraq_id(60255, 62018, 62747);

  script_name(english:"IBM DB2 10.1 < Fix Pack 3 Multiple Vulnerabilities");
  script_summary(english:"Checks DB2 signature.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote database server is affected by multiple vulnerabilities."
  );
  script_set_attribute(
    attribute:"description",
    value:
"According to its version, the installation of IBM DB2 10.1 running on
the remote host is affected by the following vulnerabilities :

  - A stack-based buffer overflow error exists related to
    input validation in the Audit facility and could lead
    to privilege escalation and denial of service attacks.
    Note this issue does not affected installs on the
    Windows operating system. (CVE-2013-3475 / IC92498)

  - When a multi-node configuration is used, an error exists
    in the Fast Communications Manager (FCM) that could
    allow denial of service attacks. (CVE-2013-4032 /
    IC94434)

  - An unspecified error exists that could allow an attacker
    to gain SELECT, INSERT, UPDATE, or DELETE permissions to
    database tables. Note that successful exploitation
    requires the rights EXPLAIN, SQLADM, or DBADM.
    (CVE-2013-4033 / IC94757)"
  );
  # https://www.ibm.com/blogs/psirt/security-bulletin-ibm-smart-analytics-system-5600-v3-is-affected-by-a-vulnerability-in-the-ibm-db2-fast-communications-manager-cve-2013-4032/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9c3d99f6");
  # Fix list
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21610582");
  # Advisory IC92498
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21639355");
  # Advisory IC94434
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21650231");
  # Advisory IC94757
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21646809");
  script_set_attribute(attribute:"solution", value:"Apply IBM DB2 version 10.1 Fix Pack 3 or later.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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:"2013/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/09/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/16");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:db2");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Databases");

  script_copyright(english:"This script is Copyright (C) 2013-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("db2_das_detect.nasl");
  script_require_ports("Services/db2das", 523);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("db2_report_func.inc");

port = get_service(svc:"db2das", default:523, exit_on_fail:TRUE);

level = get_kb_item_or_exit("DB2/" + port + "/Level");
if (level !~ '^10\\.1\\.')  exit(0, "The version of IBM DB2 listening on port "+port+" is not 10.1.");

platform = get_kb_item_or_exit("DB2/"+port+"/Platform");
platform_name = get_kb_item("DB2/"+port+"/Platform_Name");
if (isnull(platform_name))
{
  platform_name = platform;
  report_phrase = "platform " + platform;
}
else
  report_phrase = platform_name;

vuln = FALSE;
# Windows 32-bit/64-bit
if (platform == 5 || platform == 23)
{
  fixed_level = '10.1.300.533';
  if (ver_compare(ver:level, fix:fixed_level) == -1)
    vuln = TRUE;
}
# Others
else if (
  # Linux, 2.6 kernel 32/64-bit
  platform == 18 ||
  platform == 30 ||
  # AIX
  platform == 20
)
{
  fixed_level = '10.1.0.3';
  if (ver_compare(ver:level, fix:fixed_level) == -1)
    vuln = TRUE;
}
else
{
  info =
    'Nessus does not support version checks against ' + report_phrase + '.\n' +
    'To help us better identify vulnerable versions, please send the platform\n' +
    'number along with details about the platform, including the operating system\n' +
    'version, CPU architecture, and DB2 version to [email protected].\n';
  exit(1, info);
}

if (report)
{
  report_db2(
      severity        : SECURITY_HOLE,
      port            : port,
      platform_name   : platform_name,
      installed_level : level,
      fixed_level     : fixed_level);
}
else audit(AUDIT_LISTEN_NOT_VULN, "DB2", port, level);
  • NASL familyWindows
    NASL idDB2_101FP3_CRED.NASL
    descriptionAccording to its version, the installation of IBM DB2 10.1 on the remote host is affected by the following vulnerabilities : - When a multi-node configuration is used, an error exists in the Fast Communications Manager (FCM) that could allow denial of service attacks. (CVE-2013-4032 / IC94434) - An unspecified error exists that can allow an attacker to gain SELECT, INSERT, UPDATE, or DELETE permissions to database tables. Note that successful exploitation requires the rights EXPLAIN, SQLADM, or DBADM. (CVE-2013-4033 / IC94757)
    last seen2020-06-01
    modified2020-06-02
    plugin id70456
    published2013-10-16
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/70456
    titleIBM DB2 10.1 < Fix Pack 3 Multiple Vulnerabilities (credentialed check)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(70456);
  script_version("1.8");
  script_cvs_date("Date: 2019/11/27");

  script_cve_id("CVE-2013-4032", "CVE-2013-4033");
  script_bugtraq_id(62018, 62747);

  script_name(english:"IBM DB2 10.1 < Fix Pack 3 Multiple Vulnerabilities (credentialed check)");
  script_summary(english:"Checks DB2 signature");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its version, the installation of IBM DB2 10.1 on the
remote host is affected by the following vulnerabilities :

  - When a multi-node configuration is used, an error exists
    in the Fast Communications Manager (FCM) that could
    allow denial of service attacks. (CVE-2013-4032 /
    IC94434)

  - An unspecified error exists that can allow an attacker
    to gain SELECT, INSERT, UPDATE, or DELETE permissions to
    database tables. Note that successful exploitation
    requires the rights EXPLAIN, SQLADM, or DBADM.
    (CVE-2013-4033 / IC94757)");
  # https://www.ibm.com/blogs/psirt/security-bulletin-ibm-smart-analytics-system-5600-v3-is-affected-by-a-vulnerability-in-the-ibm-db2-fast-communications-manager-cve-2013-4032/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9c3d99f6");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21610582");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21650231");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21646809");
  script_set_attribute(attribute:"solution", value:
"Apply IBM DB2 Version 10.1 Fix Pack 3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/C:P/I:P/A:P");
  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:N/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:"cvss_score_source", value:"CVE-2013-4033");

  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:"2013/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/09/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:db2");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:db2_connect");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("db2_and_db2_connect_installed.nbin");
  script_require_ports("SMB/db2/Installed", "SMB/db2_connect/Installed");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("db2_report_func.inc");

# Check each installation.
db2_installed = get_kb_item("SMB/db2/Installed");
if (db2_installed)
  db2_installs = get_kb_list("SMB/db2/*");

db2connect_installed = get_kb_item("SMB/db2_connect/Installed");
if (db2_installed)
  db2connect_installs = get_kb_list("SMB/db2_connect/*");

if (!db2_installed && !db2connect_installed)
  audit(AUDIT_NOT_INST, "DB2 and/or DB2 Connect");

info = "";
fix_version = '10.1.300.533';
not_affected = make_list();
vuln = FALSE;

# Check DB2 first
foreach install(sort(keys(db2_installs)))
{
  if ("/Installed" >< install) continue;

  version = db2_installs[install];

  prod = install - "SMB/db2/";
  prod = prod - (strstr(prod, "/"));

  path = install - "SMB/db2/";
  path = path - (prod + "/");

  if (version =~ "^10\.1\." && ver_compare(ver:version, fix:fix_version, strict:FALSE) == -1)
    vuln = TRUE;
  else
    not_affected = make_list(not_affected, prod + ' version ' + version + ' at ' + path);
}

# Check DB2 Connect second
foreach install(sort(keys(db2connect_installs)))
{
  if ("/Installed" >< install) continue;

  version = db2connect_installs[install];

  prod = install - "SMB/db2_connect/";
  prod = prod - (strstr(prod, "/"));

  path = install - "SMB/db2_connect/";
  path = path - (prod + "/");

  if (version =~ "^10\.1\." && ver_compare(ver:version, fix:fix_version, strict:FALSE) == -1)
    vuln = TRUE;
  else
    not_affected = make_list(not_affected, prod + ' version ' + version + ' at ' + path);
}

port = get_kb_item("SMB/transport");
if (!port) port = 445;

# Report if vulnerable installs were found.
if (vuln)
{
  report_db2(port:port, path:path, product:prod, installed_version:version, fixed_version:fix_version, severity:SECURITY_WARNING);
  exit(0);
}
else
{
  if (max_index(not_affected) > 1)
    exit(0, join(not_affected, sep:", ") + " are installed and thus, not affected.");
  else
    audit(AUDIT_INST_VER_NOT_VULN, not_affected[0]);
}

References