Vulnerabilities > CVE-2015-2374 - Information Exposure vulnerability in Microsoft products

047910
CVSS 3.3 - LOW
Attack vector
ADJACENT_NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
low complexity
microsoft
CWE-200
nessus

Summary

The Netlogon service in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Server 2008 SP2 and R2 SP1, and Windows Server 2012 Gold and R2 does not properly implement domain-controller communication, which allows remote attackers to discover credentials by leveraging certain PDC access and spoofing the BDC role in a PDC communication channel, aka "Elevation of Privilege Vulnerability in Netlogon."

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Msbulletin

bulletin_idMS15-071
bulletin_url
date2015-07-14T00:00:00
impactElevation of Privilege
knowledgebase_id3068457
knowledgebase_url
severityImportant
titleVulnerability in Netlogon Could Allow Elevation of Privilege

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS15-071.NASL
descriptionThe remote Windows host is affected by a privilege escalation vulnerability due to the Netlogon service improperly establishing a communications channel to a primary domain controller (PDC). An attacker, with access to the PDC, can exploit this by using a crafted application to create a secure channel to the PDC as a backup domain controller (BDC), possibly allowing access to sensitive credential information. Note that this vulnerability only affects a server if it is configured as a domain controller.
last seen2020-06-01
modified2020-06-02
plugin id84735
published2015-07-14
reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/84735
titleMS15-071: Vulnerability in NETLOGON Could Allow Elevation of Privilege (3068457)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(84735);
  script_version("1.8");
  script_cvs_date("Date: 2019/11/22");

  script_cve_id("CVE-2015-2374");
  script_bugtraq_id(75633);
  script_xref(name:"MSFT", value:"MS15-071");
  script_xref(name:"MSKB", value:"3068457");
  script_xref(name:"IAVA", value:"2015-A-0173");

  script_name(english:"MS15-071: Vulnerability in NETLOGON Could Allow Elevation of Privilege (3068457)");
  script_summary(english:"Checks the version of Netlogon.dll");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by a privilege escalation
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is affected by a privilege escalation
vulnerability due to the Netlogon service improperly establishing a
communications channel to a primary domain controller (PDC). An
attacker, with access to the PDC, can exploit this by using a crafted
application to create a secure channel to the PDC as a backup domain
controller (BDC), possibly allowing access to sensitive credential
information.

Note that this vulnerability only affects a server if it is configured
as a domain controller.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-071");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 2003, 2008, 2008
R2, 2012, and 2012 R2.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-2374");

  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:"2015/07/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/07/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("smb_reg_query.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS15-071';
kb  = "3068457";

kbs = make_list(kb);
if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_NOTE);

get_kb_item_or_exit("SMB/Registry/Enumerated");
get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);
productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);

if (hotfix_check_sp_range(win2003:'2', vista:'2', win7:'1', win8:'0', win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
if ("Server" >!< productname) audit(AUDIT_OS_SP_NOT_VULN); # non-server OSes are not affected

share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

# Unless paranoid, check if the server is a DC
if (report_paranoia < 2)
{
  registry_init();
  hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
  res = get_registry_value(handle:hklm, item:"SYSTEM\CurrentControlSet\Control\ProductOptions\ProductType");
  RegCloseKey(handle:hklm);
  if (res != 'LanmanNT')
  {
    close_registry();
    audit(AUDIT_HOST_NOT, 'configured as a domain controller');
  }

  NetUseDel(close:FALSE);
}

if (
  # Windows Server 2012 R2
  hotfix_is_vulnerable(os:"6.3", sp:0, file:"netlogon.dll", version:"6.3.9600.17901", min_version:"6.3.9600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows Server 2012
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"netlogon.dll", version:"6.2.9200.21506", min_version:"6.2.9200.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"netlogon.dll", version:"6.2.9200.17395", min_version:"6.2.9200.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Server 2008 R2
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"netlogon.dll", version:"6.1.7601.23083", min_version:"6.1.7601.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"netlogon.dll", version:"6.1.7601.18880", min_version:"6.1.7600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows Server 2008
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"netlogon.dll", version:"6.0.6002.23716", min_version:"6.0.6002.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"netlogon.dll", version:"6.0.6002.19409", min_version:"6.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows Server 2003
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"netlogon.dll", version:"5.2.3790.5648", dir:"\system32", bulletin:bulletin, kb:kb)
)
{
  set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_note();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}