Vulnerabilities > CVE-2015-6136 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Jscript and Vbscript

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
microsoft
CWE-119
critical
nessus

Summary

The Microsoft (1) VBScript 5.7 and 5.8 and (2) JScript 5.7 and 5.8 engines, as used in Internet Explorer 8 through 11 and other products, allow remote attackers to execute arbitrary code via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability."

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_idMS15-124
    bulletin_url
    date2015-12-08T00:00:00
    impactRemote Code Execution
    knowledgebase_id3116180
    knowledgebase_url
    severityCritical
    titleCumulative Security Update for Internet Explorer
  • bulletin_idMS15-126
    bulletin_url
    date2015-12-08T00:00:00
    impactRemote Code Execution
    knowledgebase_id3116178
    knowledgebase_url
    severityCritical
    titleCumulative Security Update for JScript and VBScript to Address Remote Code Execution

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS15-124.NASL
    descriptionThe version of Internet Explorer installed on the remote host is missing Cumulative Security Update 3116180. It is, therefore, affected by multiple vulnerabilities, the majority of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these issues by convincing a user to visit a specially crafted website, resulting in the execution of arbitrary code in the context of the current user.
    last seen2020-03-18
    modified2015-12-08
    plugin id87253
    published2015-12-08
    reporterThis script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87253
    titleMS15-124: Cumulative Security Update for Internet Explorer (3116180)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(87253);
      script_version("1.19");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/02");
    
      script_cve_id(
        "CVE-2015-6083",
        "CVE-2015-6134",
        "CVE-2015-6135",
        "CVE-2015-6136",
        "CVE-2015-6138",
        "CVE-2015-6139",
        "CVE-2015-6140",
        "CVE-2015-6141",
        "CVE-2015-6142",
        "CVE-2015-6143",
        "CVE-2015-6144",
        "CVE-2015-6145",
        "CVE-2015-6146",
        "CVE-2015-6147",
        "CVE-2015-6148",
        "CVE-2015-6149",
        "CVE-2015-6150",
        "CVE-2015-6151",
        "CVE-2015-6152",
        "CVE-2015-6153",
        "CVE-2015-6154",
        "CVE-2015-6155",
        "CVE-2015-6156",
        "CVE-2015-6157",
        "CVE-2015-6158",
        "CVE-2015-6159",
        "CVE-2015-6160",
        "CVE-2015-6161",
        "CVE-2015-6162",
        "CVE-2015-6164"
      );
      script_bugtraq_id(
        78481,
        78482,
        78483,
        78484,
        78485,
        78486,
        78487,
        78488,
        78489,
        78490,
        78491,
        78492,
        78494,
        78495,
        78507,
        78508,
        78526,
        78527,
        78528,
        78529,
        78530,
        78531,
        78532,
        78533,
        78534,
        78535,
        78536,
        78537,
        78538,
        78540
      );
      script_xref(name:"MSFT", value:"MS15-124");
      script_xref(name:"MSKB", value:"3104002");
      script_xref(name:"MSKB", value:"3116869");
      script_xref(name:"MSKB", value:"3116900");
      script_xref(name:"MSKB", value:"3125869");
    
      script_name(english:"MS15-124: Cumulative Security Update for Internet Explorer (3116180)");
      script_summary(english:"Checks the version of mshtml.dll.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote host has a web browser installed that is affected by
    multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The version of Internet Explorer installed on the remote host is
    missing Cumulative Security Update 3116180. It is, therefore, affected
    by multiple vulnerabilities, the majority of which are remote code
    execution vulnerabilities. An unauthenticated, remote attacker can
    exploit these issues by convincing a user to visit a specially crafted
    website, resulting in the execution of arbitrary code in the context
    of the current user.");
      #https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-124
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f205555e");
      #https://support.microsoft.com/en-us/help/3125869/ms15-124-vulnerability-in-internet-explorer-could-lead-to-aslr-bypass
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?43c16242");
      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.
    
    Refer to KB3125869 for additional information.");
      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_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-6083");
      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:"2015/12/08");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/12/08");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/08");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:ie");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows : Microsoft Bulletins");
    
      script_copyright(english:"This script is Copyright (C) 2015-2020 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 = 'MS15-124';
    kbs = make_list('3104002', '3116869', '3116900', '3125869');
    
    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");
    os = get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);
    os_build = get_kb_item("SMB/WindowsVersionBuild");
    
    if (hotfix_check_sp_range(vista:'2', win7:'1', win8:'0', win81:'0', win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
    if ("10" >< os && !("10240" == os_build || "10586" == os_build)) audit(AUDIT_OS_SP_NOT_VULN);
    if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);
    
    share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
    if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
    
    # Assume applied until proven guilty
    applied = TRUE;
    if (
      # Windows 10
      hotfix_is_vulnerable(os:"10", sp:0, os_build:"10586", file:"mshtml.dll", version:"11.0.10586.20", min_version:"11.0.10586.0", dir:"\system32", bulletin:bulletin, kb:"3116900") ||
      hotfix_is_vulnerable(os:"10", sp:0, os_build:"10240", file:"mshtml.dll", version:"11.0.10240.16603", min_version:"11.0.10240.16000", dir:"\system32", bulletin:bulletin, kb:"3116869") ||
    
      # Windows 8.1 / Windows Server 2012 R2
      # Internet Explorer 11
      hotfix_is_vulnerable(os:"6.3", sp:0, file:"mshtml.dll", version:"11.0.9600.18125", min_version:"11.0.9600.17000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
    
      # Windows 8 / Windows Server 2012
      # Internet Explorer 10
      hotfix_is_vulnerable(os:"6.2", sp:0, file:"mshtml.dll", version:"10.0.9200.21684", min_version:"10.0.9200.21000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      hotfix_is_vulnerable(os:"6.2", sp:0, file:"mshtml.dll", version:"10.0.9200.17568", min_version:"10.0.9200.16000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
    
      # Windows 7 / Server 2008 R2
      # Internet Explorer 10
      hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"10.0.9200.21684", min_version:"10.0.9200.21000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"10.0.9200.17566", min_version:"10.0.9200.16000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      # Internet Explorer 11
      hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"11.0.9600.18125", min_version:"11.0.9600.17000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      # Internet Explorer 8
      hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"8.0.7601.23262", min_version:"8.0.7601.22000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"8.0.7601.19058", min_version:"8.0.7601.17000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      # Internet Explorer 9
      hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"9.0.8112.20838", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"9.0.8112.16723", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
    
      # Vista / Windows Server 2008
      # Internet Explorer 7
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"7.0.6002.23847", min_version:"7.0.6002.23000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"7.0.6002.19537", min_version:"7.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      # Internet Explorer 8
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"8.0.6001.23765", min_version:"8.0.6001.23000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"8.0.6001.19705", min_version:"8.0.6001.18000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      # Internet Explorer 9
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"9.0.8112.20838", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:"3104002") ||
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"9.0.8112.16723", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:"3104002")
    ) applied = FALSE;
    
    ######################################
    # Report
    ######################################
    if (!applied)
    {
      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');
    }
    
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS15-126.NASL
    descriptionThe remote Windows host is missing a security update. It is, therefore, affected by multiple vulnerabilities : - An information disclosure vulnerability exists in VBScript due to the improper disclosure of memory contents. An attacker can exploit this to gain information that can be used to further compromise a user
    last seen2020-06-01
    modified2020-06-02
    plugin id87255
    published2015-12-08
    reporterThis script is Copyright (C) 2015-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/87255
    titleMS15-126: Cumulative Security Update for JScript and VBScript to Address Remote Code Execution (3116178)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(87255);
      script_version("1.10");
      script_cvs_date("Date: 2018/11/15 20:50:31");
    
      script_cve_id("CVE-2015-6135","CVE-2015-6136");
      script_bugtraq_id(78538, 78540);
      script_xref(name:"MSFT", value:"MS15-126");
      script_xref(name:"MSKB", value:"3105579");
      script_xref(name:"MSKB", value:"3105578");
      script_xref(name:"MSKB", value:"3116178");
    
      script_name(english:"MS15-126: Cumulative Security Update for JScript and VBScript to Address Remote Code Execution (3116178)");
      script_summary(english:"Checks the version of Vbscript.dll.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Windows 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 information disclosure vulnerability exists in
        VBScript due to the improper disclosure of memory
        contents. An attacker can exploit this to gain
        information that can be used to further compromise a
        user's computer or data. (CVE-2015-6135)
    
      - A remote code execution vulnerability exists related to
        the way the VBScript engine renders when handling
        objects in memory in Internet Explorer. A remote
        attacker can exploit this, via a crafted web page,
        document, or application, to gain elevated privileges
        and take full control of an affected system.
        (CVE-2015-6136)");
      script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-126");
      script_set_attribute(attribute:"solution", value:
    "Microsoft has released a set of patches for Vista, 2008, and 2008 R2.");
      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_set_attribute(attribute:"vuln_publication_date", value:"2015/12/08");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/12/08");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/08");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
      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");
      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("misc_func.inc");
    
    get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
    
    bulletin = 'MS15-126';
    kbs = make_list(
      "3105579",
      "3105578",
      "3116178"
    );
    
    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') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
    
    # if IE isn't installed we must still check the vbscript version
    ie_ver = get_kb_item("SMB/IE/Version");
    productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
    
    # The Server Core 2 check applies to IE 8 only
    if (!isnull(ie_ver) && (ver_compare(ver:ie_ver, fix:"9.0.0.0") >= 0))
    audit(AUDIT_INST_VER_NOT_VULN, "Internet Explorer", ie_ver);
    
    # Some of the 2k3 checks could flag XP 64, which is unsupported
    if ("Windows XP" >< productname) audit(AUDIT_OS_SP_NOT_VULN);
    
    rootfile = hotfix_get_systemroot();
    if (!rootfile) exit(1, "Failed to get the system root.");
    
    share = hotfix_path2share(path:rootfile);
    if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
    
    vuln = 0;
    
    # VBScript 5.8
    # only on Server Core 2008 R2
    kb = "3105578";
    if (
      hotfix_check_server_core() == 1 &&
      (
       # Windows Server 2008 R2
        hotfix_is_vulnerable(os:"6.1", sp:1, file:"Vbscript.dll", version:"5.8.7601.23277", min_version:"5.8.7601.22000", dir:"\system32", bulletin:bulletin, kb:kb) ||
        hotfix_is_vulnerable(os:"6.1", sp:1, file:"Vbscript.dll", version:"5.8.7601.19062", min_version:"5.8.7601.0",     dir:"\system32", bulletin:bulletin, kb:kb)
      )
    ) vuln++;
    
    # These checks only apply < 8.0 IE
    if (!isnull(ie_ver) && (ver_compare(ver:ie_ver, fix:"8.0.0.0") >= 0))
    audit(AUDIT_INST_VER_NOT_VULN, "Internet Explorer", ie_ver);
    
    # VBScript 5.7
    kb = "3105579";
    if (
      # Vista / Windows 2008
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"Vbscript.dll", version:"5.7.6002.23859", min_version:"5.7.6002.22000", dir:"\System32", bulletin:bulletin, kb:kb) ||
      hotfix_is_vulnerable(os:"6.0", sp:2, file:"Vbscript.dll", version:"5.7.6002.19549", min_version:"5.7.6002.0", dir:"\System32", bulletin:bulletin, kb:kb)
    ) vuln++;
    
    
    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');
    }
    

Seebug

bulletinFamilyexploit
descriptionNo description provided by source.
idSSV:90122
last seen2017-11-19
modified2015-12-16
published2015-12-16
reporterRoot
titleMicrosoft VBScript和JScript脚本引擎内存破坏漏洞(CVE-2015-6136)