Vulnerabilities > CVE-2007-1088 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in IBM DB2

047910
CVSS 7.2 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
low complexity
ibm
CWE-119
nessus

Summary

Stack-based buffer overflow in IBM DB2 8.x before 8.1 FixPak 15 and 9.1 before Fix Pack 2 allows local users to execute arbitrary code via a long string in unspecified environment variables.

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_9FP2.NASL
descriptionAccording to its version, the installation of IBM DB2 running on the remote host allows unsafe access to several setuid-root binaries. A local attacker can exploit this to crash the affected database server or possibly even gain root-level access. In addition, the fenced userid may be able to access directories without proper authorization.
last seen2020-06-01
modified2020-06-02
plugin id24699
published2007-02-23
reporterThis script is Copyright (C) 2007-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/24699
titleIBM DB2 < 9 Fix Pack 2 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(24699);
  script_version("1.26");
  script_cvs_date("Date: 2018/11/15 20:50:21");

  script_cve_id("CVE-2007-1086", "CVE-2007-1087", "CVE-2007-1088", "CVE-2007-1228");
  script_bugtraq_id(22677, 22729);

  script_name(english:"IBM DB2 < 9 Fix Pack 2 Multiple Vulnerabilities");
  script_summary(english:"Checks DB2 signature.");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by multiple issues.");
  script_set_attribute(attribute:"description", value:
"According to its version, the installation of IBM DB2 running on the
remote host allows unsafe access to several setuid-root binaries. A
local attacker can exploit this to crash the affected database server
or possibly even gain root-level access. 

In addition, the fenced userid may be able to access directories
without proper authorization.");
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c3852717");
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3f1c047c");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2007/Feb/520");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2007/Feb/522");
  script_set_attribute(attribute:"see_also", value:"http://www-1.ibm.com/support/docview.wss?uid=swg21255745");
  script_set_attribute(attribute:"see_also", value:"http://www-1.ibm.com/support/docview.wss?uid=swg21255747");
  script_set_attribute(attribute:"see_also", value:"http://www-1.ibm.com/support/docview.wss?uid=swg1IY86711");
  script_set_attribute(attribute:"solution", value:"Apply DB2 Version 9 Fix Pack 2 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: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:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(287);
  script_set_attribute(attribute:"plugin_publication_date", value: "2007/02/23");
  script_set_attribute(attribute:"vuln_publication_date", value: "2006/07/06");
  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) 2007-2018 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("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\\.[01]\\.') exit(0, "The version of IBM DB2 listening on port "+port+" is not 9.0 or 9.1 and thus is not affected.");
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 = '9.1.100.129';
  if (ver_compare(ver:level, fix:fixed_level) == -1)
    vuln = TRUE;
}
# Linu, 2.6 Kernel 32/64-bit
else if (platform == 18 || platform == 30)
{
  fixed_level = '9.1.0.2';
  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);
}
exit(0, "IBM DB2 "+level+" on " + report_phrase + " is listening on port "+port+" and is not affected.");