Vulnerabilities > CVE-2015-2546 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft products

047910
CVSS 6.9 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
microsoft
CWE-119
nessus

Summary

The kernel-mode driver 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 "Win32k Memory Corruption Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2511, CVE-2015-2517, and CVE-2015-2518.

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.

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');
}