Vulnerabilities > CVE-2012-4826 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in IBM DB2

047910
CVSS 8.5 - HIGH
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
ibm
CWE-119
nessus
NVD
Published: 2012-10-20
Updated: 2013-03-02

Summary

Stack-based buffer overflow in the SQL/PSM (aka SQL Persistent Stored Module) Stored Procedure (SP) infrastructure in IBM DB2 9.1, 9.5, 9.7 before FP7, 9.8, and 10.1 might allow remote authenticated users to execute arbitrary code by debugging a stored procedure.

Vulnerable Configurations

Part Description Count
Application
Ibm
11

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.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL familyDatabases
NASL idDB2_97FP7.NASL
descriptionAccording to its version, the installation of IBM DB2 9.7 running on the remote host is prior to Fix Pack 7. It is, therefore, affected by one or more of the following issues : - An error exists related to the stored procedure
last seen2020-06-01
modified2020-06-02
plugin id62701
published2012-10-25
reporterThis script is Copyright (C) 2012-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/62701
titleIBM DB2 9.7 < Fix Pack 7 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if (description)
{
  script_id(62701);
  script_version("1.12");
  script_cvs_date("Date: 2018/07/06 11:26:06");

  script_cve_id(
    "CVE-2012-2194",
    "CVE-2012-2196",
    "CVE-2012-2197",
    "CVE-2012-4826"
  );
  script_bugtraq_id(54487, 56133);

  script_name(english:"IBM DB2 9.7 < Fix Pack 7 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 9.7 running on
the remote host is prior to Fix Pack 7. It is, therefore, affected by
one or more of the following issues :

  - An error exists related to the stored procedure
    'SQLJ.DB2_INSTALL_JAR' that can allow 'JAR' files to be
    overwritten. Note that this issue only affects Windows
    hosts. (#IC84711, CVE-2012-2194)

  - An error exists related to the stored procedures
    'GET_WRAP_CFG_C' and 'GET_WRAP_CFG_C2' that can allow
    unauthorized access to XML files. (#IC84712,
    CVE-2012-2196)

  - An error exists related to the Java stored procedure
    infrastructure that can allow stack-based buffer
    overflows. (#IC84752, CVE-2012-2197)

  - An error exists related to the SQL/Persistent Stored
    Module (PSM) stored procedure infrastructure that can
    allow stack-based buffer overflows. (#IC86781,
    CVE-2012-4826)"
  );
  # Downloads
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg27007053");
  # IC84711
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg1IC84711");
  # IC84712
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg1IC84712");
  # IC84752
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg1IC84752");
  # IC86781
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg1IC86781");
  script_set_attribute(attribute:"solution", value:"Apply IBM DB2 version 9.7 Fix Pack 7 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/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:L/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:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/07/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/10/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/10/25");

  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) 2012-2018 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 !~ "^9\.7\.") exit(0, "The version of IBM DB2 listening on port "+port+" is not 9.7.");

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 = '9.7.700.552';
  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 = '9.7.0.7';
  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 (vuln)
{
  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);

References