Vulnerabilities > CVE-2007-6252 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Learn2 Strunner

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
learn2
CWE-119
nessus

Summary

Multiple stack-based buffer overflows in the Learn2 Corporation STRunner (aka Street Technologies) ActiveX control in iestm32.dll allow remote attackers to execute arbitrary code via unspecified vectors. Additional information can be obtained from: http://www.securityfocus.com/bid/28058/info Instructions on disabling Active X in internet explorer is located here: http://support.microsoft.com/kb/240797

Vulnerable Configurations

Part Description Count
Application
Learn2
1

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 familyWindows
NASL idLEARN2_STRUNNER_OVERFLOWS.NASL
descriptionThe Learn2 Corporation
last seen2020-06-01
modified2020-06-02
plugin id31352
published2008-03-05
reporterThis script is Copyright (C) 2008-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/31352
titleLearn2 STRunner ActiveX Control Multiple Buffer Overflow Vulnerabilities
code
#
#  (C) Tenable Network Security, Inc.
#



include("compat.inc");

if (description)
{
  script_id(31352);
  script_version("1.14");

  script_cve_id("CVE-2007-6252");
  script_bugtraq_id(28058);
  script_xref(name:"CERT", value:"524857");

  script_name(english:"Learn2 STRunner ActiveX Control Multiple Buffer Overflow Vulnerabilities");
  script_summary(english:"Checks for affected ActiveX control");

 script_set_attribute(attribute:"synopsis", value:
"The remote Windows host has an ActiveX control that is susceptible to
multiple buffer overflow attacks." );
 script_set_attribute(attribute:"description", value:
"The Learn2 Corporation's STRunner ActiveX control, used with various
online tutorials, is installed on the remote host.  It reportedly is
affected by multiple and as-yet unspecified stack-based buffer
overflows. If a remote attacker can trick a user on the affected host
into visiting a specially crafted web page, this issue could be
leveragedto execute arbitrary code on the affected host subject to the
user's privileges." );
 script_set_attribute(attribute:"solution", value:
"Unknown at this time." );
 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_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"false");
 script_cwe_id(119);
 script_set_attribute(attribute:"plugin_publication_date", value: "2008/03/05");
 script_cvs_date("Date: 2018/07/12 19:01:17");
script_set_attribute(attribute:"plugin_type", value:"local");
script_end_attributes();


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

  script_copyright(english:"This script is Copyright (C) 2008-2018 Tenable Network Security, Inc.");

  script_dependencies("smb_hotfixes.nasl");
  script_require_keys("SMB/Registry/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}


include("global_settings.inc");
include("smb_func.inc");
include("smb_activex_func.inc");


if (!get_kb_item("SMB/Registry/Enumerated")) exit(0);


# Locate the file used by the control.
if (activex_init() != ACX_OK) exit(0);

clsid = "{0B72CCA4-5F11-11D0-9CB5-0000C0EC9FDB}";
file = activex_get_filename(clsid:clsid);
if (file)
{
  # Get its version.
  ver = activex_get_fileversion(clsid:clsid);

  if (ver) ver = string("Version ", ver);
  else ver = string("An unknown version");

  if (report_paranoia > 1)
    report = string(
      "\n",
      ver, " of the vulnerable control is installed as :\n",
      "\n",
      "  ", file, "\n",
      "\n",
      "Note, though, that Nessus did not check whether the kill bit was\n",
      "set for the control's CLSID because of the Report Paranoia setting\n",
      "in effect when this scan was run.\n"
    );
  else if (activex_get_killbit(clsid:clsid) == 0)
    report = string(
      "\n",
      ver, " of the vulnerable control is installed as :\n",
      "\n",
      "  ", file, "\n",
      "\n",
      "Moreover, its kill bit is not set so it is accessible via Internet\n",
      "Explorer.\n"
    );
  if (report)
  {
    if (report_verbosity) security_hole(port:kb_smb_transport(), extra:report);
    else security_hole(kb_smb_transport());
  }
}
activex_end();