Vulnerabilities > CVE-2007-3911 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Bakbone Netvault Reporter

047910
CVSS 10.0 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
low complexity
bakbone
CWE-119
critical
nessus
NVD
Published: 2007-07-30
Updated: 2018-10-15

Summary

Multiple heap-based buffer overflows in (1) clsscheduler.exe (aka scheduler client) and (2) srvscheduler.exe (aka scheduler server) in BakBone NetVault Reporter 3.5 before Update4 allow remote attackers to execute arbitrary code via long filename arguments in HTTP requests.

Vulnerable Configurations

Part Description Count
Application
Bakbone
1

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 familyWindows
NASL idNETVAULT_REPORT_MANAGER_SCHEDULER_OVERFLOW.NASL
descriptionThe remote host is running NetVault Report Manager, a tool for monitoring backup reports. The Server and Client Scheduler components included in the version of NetVault Report Manager installed on the remote host suffer from a heap overflow vulnerability that can occur when processing overly long filename arguments to
last seen2020-06-01
modified2020-06-02
plugin id25767
published2007-07-26
reporterThis script is Copyright (C) 2007-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/25767
titleNetVault Report Manager Scheduler File Name Handling Overflow
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(25767);
  script_version("1.21");
  script_cvs_date("Date: 2018/11/15 20:50:27");

  script_cve_id("CVE-2007-3911");
  script_bugtraq_id(25068);
  script_xref(name:"TRA", value:"TRA-2007-05");

  script_name(english:"NetVault Report Manager Scheduler File Name Handling Overflow");
  script_summary(english:"Checks version of Server Scheduler");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host contains an application that is prone to a
buffer overflow attack.");
  script_set_attribute(attribute:"description", value:
"The remote host is running NetVault Report Manager, a tool for
monitoring backup reports.

The Server and Client Scheduler components included in the version of
NetVault Report Manager installed on the remote host suffer from a
heap overflow vulnerability that can occur when processing overly long
filename arguments to 'GET' and 'POST' requests. Code execution is
possible under the context of the SYSTEM user.");
  script_set_attribute(attribute:"see_also", value:"https://www.tenable.com/security/research/tra-2007-05");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-07-044/");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2007/Jul/296" );
  script_set_attribute(attribute:"solution", value:"Upgrade to NetVault Report Manager v3.5 Update 4 or later.");
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:"vuln_publication_date", value:"2007/07/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/07/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/07/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:bakbone:netvault_reporter");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2007-2018 Tenable Network Security, Inc.");

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

  exit(0);
}


include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");

if (!get_kb_item("SMB/Registry/Enumerated")) exit(1, "KB 'SMB/Registry/Enumerated' not set to TRUE.");

# Connect to the appropriate share.
port    =  kb_smb_transport();
login   =  kb_smb_login();
pass    =  kb_smb_password();
domain  =  kb_smb_domain();

if(! smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');

rc = NetUseAdd(login:login, password:pass, domain:domain, share:"IPC$");
if (rc != 1)
{
  NetUseDel();
  audit(AUDIT_SHARE_FAIL,"IPC$");
}


# Connect to remote registry.
hklm = RegConnectRegistry(hkey:HKEY_LOCAL_MACHINE);
if (isnull(hklm))
{
  NetUseDel();
  audit(AUDIT_REG_FAIL);
}


# Make sure it's installed.
exe = NULL;
key = "SYSTEM\CurrentControlSet\Services\USServerSchedulerService";
key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);
if (!isnull(key_h))
{
  value = RegQueryValue(handle:key_h, item:"ImagePath");
  if (!isnull(value)) exe = value[1];

  RegCloseKey(handle:key_h);
}
RegCloseKey(handle:hklm);
if (isnull(exe))
{
  NetUseDel();
  exit(0);
}
NetUseDel(close:FALSE);


# Grab the file version of the affected file.
share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:exe);
sys =  ereg_replace(pattern:"^[A-Za-z]:(.*)", replace:"\1", string:exe);

rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
  NetUseDel();
  audit(AUDIT_SHARE_FAIL,share);
}

fh = CreateFile(
  file:sys,
  desired_access:GENERIC_READ,
  file_attributes:FILE_ATTRIBUTE_NORMAL,
  share_mode:FILE_SHARE_READ,
  create_disposition:OPEN_EXISTING
);
if (!isnull(fh))
{
  ver = GetFileVersion(handle:fh);
  CloseFile(handle:fh);
}
NetUseDel();


# Check the version number.
if (!isnull(ver))
{
  # nb: 3.5.1.248 is the file version from version 3.5 Update 4.
  fix = split("3.5.1.248", sep:'.', keep:FALSE);
  for (i=0; i<4; i++)
    fix[i] = int(fix[i]);

  for (i=0; i<max_index(ver); i++)
    if ((ver[i] < fix[i]))
    {
      security_hole(port);
      break;
    }
    else if (ver[i] > fix[i])
      break;
}

References