Vulnerabilities > CVE-2015-2512 - Permissions, Privileges, and Access Controls vulnerability in Microsoft products

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
microsoft
CWE-264
nessus
exploit available

Summary

The Adobe Type Manager Library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Font Driver Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2507.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Exploit-Db

  • descriptionWindows Kernel - NtGdiStretchBlt Pool Buffer Overflows (MS15-097). CVE-2015-2512. Dos exploit for win32 platform
    fileexploits/windows_x86/dos/38280.txt
    idEDB-ID:38280
    last seen2016-02-04
    modified2015-09-22
    platformwindows_x86
    port
    published2015-09-22
    reporterNils Sommer
    sourcehttps://www.exploit-db.com/download/38280/
    titleWindows Kernel - NtGdiStretchBlt Pool Buffer Overflows MS15-097
    typedos
  • descriptionWindows Kernel - NtGdiBitBlt Buffer Overflow (MS15-097). CVE-2015-2512. Dos exploit for win32 platform
    idEDB-ID:38307
    last seen2016-02-04
    modified2015-09-24
    published2015-09-24
    reporterNils Sommer
    sourcehttps://www.exploit-db.com/download/38307/
    titleWindows Kernel - NtGdiBitBlt Buffer Overflow MS15-097

Msbulletin

bulletin_idMS15-097
bulletin_url
date2015-09-08T00:00:00
impactRemote Code Execution
knowledgebase_id3089656
knowledgebase_url
severityCritical
titleVulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS15-097.NASL
descriptionThe remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - An elevation of privilege vulnerability exists in the Windows Adobe Type Manager Library due to improper handling of specially crafted OpenType fonts. An authenticated, remote attacker can exploit this vulnerability, via a specially crafted application, to elevate privileges and execute arbitrary code. (CVE-2015-2506) - Multiple elevation of privilege vulnerabilities exist in the Windows Adobe Type Manager Library due to improper handling of objects in memory. A local attacker can exploit these vulnerabilities, via a specially crafted application, to execute arbitrary code. (CVE-2015-2507, CVE-2015-2508, CVE-2015-2512) - A remote code execution vulnerability exists in components of Windows, Office, and Lync due to improper handling of specially crafted OpenType fonts. An unauthenticated, remote attacker can exploit this vulnerability by convincing a user to open a file or visit a website containing specially crafted OpenType fonts, resulting in execution of arbitrary code in the context of the current user. (CVE-2015-2510) - Multiple elevation of privilege vulnerabilities exist in the Windows kernel-mode driver due to improper handling of objects in memory. A local attacker can exploit these vulnerabilities, via a specially crafted application, to execute arbitrary code in kernel mode. (CVE-2015-2511, CVE-2015-2517, CVE-2015-2518, CVE-2015-2546) - An elevation of privilege vulnerability exists in the Windows kernel-mode driver due to improper validation and enforcement of integrity levels during certain process initialization scenarios. A local attacker can exploit this vulnerability, via a specially crafted application, to execute arbitrary code in kernel mode. (CVE-2015-2527) - A security feature bypass vulnerability exists due to a failure by the Windows kernel to properly initialize a memory address. A local attacker can exploit this, via a specially crafted application, to bypass Kernel Address Space Layout Randomization (KASLR) and retrieve the base address of the kernel driver. (CVE-2015-2529)
last seen2020-06-01
modified2020-06-02
plugin id85877
published2015-09-09
reporterThis script is Copyright (C) 2015-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/85877
titleMS15-097: Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution (3089656)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(85877);
  script_version("1.13");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id(
    "CVE-2015-2506",
    "CVE-2015-2507",
    "CVE-2015-2508",
    "CVE-2015-2510",
    "CVE-2015-2511",
    "CVE-2015-2512",
    "CVE-2015-2517",
    "CVE-2015-2518",
    "CVE-2015-2527",
    "CVE-2015-2529",
    "CVE-2015-2546"
  );
  script_bugtraq_id(
    76563,
    76589,
    76591,
    76592,
    76593,
    76597,
    76599,
    76602,
    76606,
    76607,
    76608
  );
  script_xref(name:"MSFT", value:"MS15-097");
  script_xref(name:"MSKB", value:"3085529");
  script_xref(name:"MSKB", value:"3085546");
  script_xref(name:"MSKB", value:"3085500");
  script_xref(name:"MSKB", value:"3081087");
  script_xref(name:"MSKB", value:"3081088");
  script_xref(name:"MSKB", value:"3081089");
  script_xref(name:"MSKB", value:"3081090");
  script_xref(name:"MSKB", value:"3087039");
  script_xref(name:"MSKB", value:"3087135");
  script_xref(name:"MSKB", value:"3081455");
  script_xref(name:"IAVA", value:"2015-A-0212");

  script_name(english:"MS15-097: Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution (3089656)");
  script_summary(english:"Checks the file versions.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing a security update. It is,
therefore, affected by multiple vulnerabilities :

  - An elevation of privilege vulnerability exists in the
    Windows Adobe Type Manager Library due to improper
    handling of specially crafted OpenType fonts. An
    authenticated, remote attacker can exploit this
    vulnerability, via a specially crafted application, to
    elevate privileges and execute arbitrary code.
    (CVE-2015-2506)

  - Multiple elevation of privilege vulnerabilities exist in
    the Windows Adobe Type Manager Library due to improper
    handling of objects in memory. A local attacker can
    exploit these vulnerabilities, via a specially crafted
    application, to execute arbitrary code. (CVE-2015-2507,
    CVE-2015-2508, CVE-2015-2512)

  - A remote code execution vulnerability exists in
    components of Windows, Office, and Lync due to improper
    handling of specially crafted OpenType fonts. An
    unauthenticated, remote attacker can exploit this
    vulnerability by convincing a user to open a file or
    visit a website containing specially crafted OpenType
    fonts, resulting in execution of arbitrary code in the
    context of the current user. (CVE-2015-2510)

  - Multiple elevation of privilege vulnerabilities exist in
    the Windows kernel-mode driver due to improper handling
    of objects in memory. A local attacker can exploit these
    vulnerabilities, via a specially crafted application, to
    execute arbitrary code in kernel mode. (CVE-2015-2511,
    CVE-2015-2517, CVE-2015-2518, CVE-2015-2546)

  - An elevation of privilege vulnerability exists in the
    Windows kernel-mode driver due to improper validation
    and enforcement of integrity levels during certain
    process initialization scenarios. A local attacker can
    exploit this vulnerability, via a specially crafted
    application, to execute arbitrary code in kernel mode.
    (CVE-2015-2527)

  - A security feature bypass vulnerability exists due to
    a failure by the Windows kernel to properly initialize a
    memory address. A local attacker can exploit this, via a
    specially crafted application, to bypass Kernel Address
    Space Layout Randomization (KASLR) and retrieve the base
    address of the kernel driver. (CVE-2015-2529)");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-097");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows Vista, 2008, 7,
2008 R2, 8, RT, 2012, 8.1, RT 8.1, 2012 R2, and 10. Additionally,
Microsoft has released a set of patches for Office 2007, Office 2010,
Lync 2010, Lync 2010 Attendee, Lync 2013 (Skype for Business), Lync
Basic 2013, and Live Meeting 2007.");
  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:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/09/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/09/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/09/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:live_meeting_console");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:lync");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:lync_basic");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:skype_for_business");
  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) 2015-2018 Tenable Network Security, Inc.");

  script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl", "office_installed.nasl", "microsoft_lync_server_installed.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_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");
include("misc_func.inc");
include("install_func.inc");

get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');

global_var bulletin, vuln, arch;

arch = get_kb_item_or_exit('SMB/ARCH');
vuln = 0;
bulletin = 'MS15-097';

kbs = make_list(
  '3085529', # Office 2010 SP 2
  '3085546', # Office 2007 SP 3
  '3085500', # Microsoft Lync 2013 (Skype for Business)
  '3081087', # Microsoft Lync 2010
  '3081088', # Microsoft Lync 2010 Attendee
  '3081089', # Microsoft Lync 2010 Attendee (admin level install)
  '3081090', # Microsoft Live Meeting 2007
  '3087039', # Windows (all but 10)
  '3087135', # Windows (all but 10)
  '3081455'  # Windows 10
);

if (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit("SMB/Registry/Enumerated");
get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);
if (hotfix_check_sp_range(vista:'2', win7:'1', win8:'0', win81:'0', win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

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

# Windows Checks
function perform_windows_checks()
{
  # KB 3081455
  if (
    # Windows 10
    hotfix_is_vulnerable(os:"10", sp:0, file:"atmfd.dll", version:"5.1.2.246", dir:"\system32", bulletin:bulletin, kb:'3081455')
  )
    vuln++;

  # KB 3087039
  if (
    # Windows 8.1 / Windows Server 2012 R2
    hotfix_is_vulnerable(os:"6.3", sp:0, file:"atmfd.dll", version:"5.1.2.246", dir:"\system32", bulletin:bulletin, kb:'3087039') ||

    # Windows 8 / Windows Server 2012
    hotfix_is_vulnerable(os:"6.2", sp:0, file:"atmfd.dll", version:"5.1.2.246", dir:"\system32", bulletin:bulletin, kb:'3087039') ||

    # Windows 7 and Windows Server 2008 R2
    hotfix_is_vulnerable(os:"6.1", sp:1, file:"atmfd.dll", version:"5.1.2.246", dir:"\system32", bulletin:bulletin, kb:'3087039') ||

    # Vista / Windows 2008
    hotfix_is_vulnerable(os:"6.0", sp:2, file:"atmfd.dll", version:"5.1.2.246", dir:"\system32", bulletin:bulletin, kb:'3087039')
  )
    vuln++;

  # KB 3087135
  if (
    # Vista / Windows 2008
    hotfix_is_vulnerable(os:"6.0", sp:2, file:"gdiplus.dll", version:"5.2.6002.19466", min_version:"5.2.6002.0", dir:"\system32", bulletin:bulletin, kb:'3087135') ||
    hotfix_is_vulnerable(os:"6.0", sp:2, file:"gdiplus.dll", version:"5.2.6002.23775", min_version:"5.2.6002.20000", dir:"\system32", bulletin:bulletin, kb:'3087135') ||

    # Vista / Windows 2008
    hotfix_is_vulnerable(os:"6.0", sp:2, file:"gdiplus.dll", version:"6.0.6002.19466", min_version:"6.0.6002.0", dir:"\system32", bulletin:bulletin, kb:'3087135') ||
    hotfix_is_vulnerable(os:"6.0", sp:2, file:"gdiplus.dll", version:"6.0.6002.23775", min_version:"6.0.6002.20000", dir:"\system32", bulletin:bulletin, kb:'3087135')
  )
    vuln++;
}

# KB 3085546 / KB 3085529 (Office Checks)
function perform_office_checks()
{
  local_var office_versions, office_sp;
  local_var path;

  office_versions = hotfix_check_office_version();
  if (office_versions["14.0"])
  {
    office_sp = get_kb_item("SMB/Office/2010/SP");
    if (!isnull(office_sp) && office_sp == 2)
    {
      path = hotfix_append_path(path:hotfix_get_officecommonfilesdir(officever:"14.0"), value:"\Microsoft Shared\Office14");
      if (hotfix_check_fversion(file:"Ogl.dll", version:"14.0.7157.5000", min_version:"14.0.0.0", path:path, bulletin:bulletin, kb:"3085529", product:"Microsoft Office 2010 SP2") == HCF_OLDER)
        vuln++;
    }
  }

  if (office_versions["12.0"])
  {
    office_sp = get_kb_item("SMB/Office/2007/SP");
    if (office_sp == 3)
    {
      path = hotfix_append_path(path:hotfix_get_officecommonfilesdir(officever:"12.0"), value:"\Microsoft Shared\Office12");
      if (hotfix_check_fversion(file:"Ogl.dll", version:"12.0.6728.5000", min_version:"12.0.0.0", path:path, bulletin:bulletin, kb:'3085546', product:"Microsoft Office 2007 SP3") == HCF_OLDER)
         vuln++;
    }
  }
}

# Lync checks
function perform_lync_checks()
{
  local_var lync_count, lync_installs, lync_install;
  local_var count,install;

  lync_count = get_install_count(app_name:"Microsoft Lync");
  if (lync_count > 0)
  {
    lync_installs = get_installs(app_name:"Microsoft Lync");
    foreach lync_install (lync_installs[1])
    {
      if ("Live Meeting 2007 Console" >< lync_install["Product"])
     {
        if (hotfix_check_fversion(file:"pubutil.dll", version:"8.0.6362.239", min_version:"8.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3081090", product:"Live Meeting 2007 Console") == HCF_OLDER)
          vuln++;
      }
      else if (lync_install["version"] =~ "^4\.0\." && "Server" >!< lync_install["Product"])
      {
        if ("Attendee" >!< lync_install["Product"])
       {
          if (hotfix_check_fversion(file:"communicator.exe", version:"4.0.7577.4478", min_version:"4.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3081087", product:"Microsoft Lync 2010") == HCF_OLDER)
            vuln++;
        }
        else if ("Attendee" >< lync_install["Product"])
        {
          if ("user level" >< tolower(lync_install["Product"]))
          {
            if (hotfix_check_fversion(file:"MeetingJoinAxAOC.DLL", version:"4.0.7577.4478", min_version:"4.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3081088", product:lync_install["Product"]) == HCF_OLDER)
              vuln++;
          }
          else
          {
            if (hotfix_check_fversion(file:"MeetingJoinAxAOC.DLL", version:"4.0.7577.4478", min_version:"4.0.0.0", path:lync_install["path"], bulletin:bulletin, kb:"3081089", product:lync_install["Product"]) == HCF_OLDER)
              vuln++;
          }
        }
      }
      else if (lync_install["version"] =~ "^15\.0\." && "Server" >!< lync_install["Product"])
      {
        if (hotfix_check_fversion(file:"Lync.exe", version:"15.0.4753.1000", min_version:"15.0.4569.1503", path:lync_install["path"], bulletin:bulletin, kb:"3085500", product:"Microsoft Lync 2013 (Skype for Business)") == HCF_OLDER)
          vuln++;
      }
    }
  }
}

perform_windows_checks();
perform_office_checks();
perform_lync_checks();

if(vuln)
{
  set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}