Vulnerabilities > CVE-2010-0774 - Permissions, Privileges, and Access Controls vulnerability in IBM Websphere Application Server

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
ibm
CWE-264
nessus

Summary

The (1) JAX-RPC WS-Security 1.0 and (2) JAX-WS runtime implementations in IBM WebSphere Application Server (WAS) 6.0 before 6.0.2.41, 6.1 before 6.1.0.31, and 7.0 before 7.0.0.11 do not properly handle WebServices PKCS#7 and PKIPath tokens, which allows remote attackers to bypass intended access restrictions via unspecified vectors.

Vulnerable Configurations

Part Description Count
Application
Ibm
76

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.

Nessus

  • NASL familyWeb Servers
    NASL idWEBSPHERE_6_1_0_31.NASL
    descriptionIBM WebSphere Application Server 6.1 before Fix Pack 31 appears to be running on the remote host. As such, it is reportedly affected by multiple vulnerabilities : - It is possible for Administrator role members to modify primary administrative id via the administrative console. (PK88606) - An unspecified cross-site scripting vulnerability in the Administration Console. (PK97376) - An error when defining a wsadmin scripting
    last seen2020-06-01
    modified2020-06-02
    plugin id45430
    published2010-04-06
    reporterThis script is Copyright (C) 2010-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/45430
    titleIBM WebSphere Application Server 6.1 < 6.1.0.31 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(45430);
      script_version("1.19");
      script_cvs_date("Date: 2018/08/06 14:03:16");
    
      script_cve_id(
        "CVE-2010-0768",
        "CVE-2010-0769",
        "CVE-2010-0770",
        "CVE-2010-0774",
        "CVE-2010-0775",
        "CVE-2010-0776",
        "CVE-2010-0777",
        "CVE-2010-1650",
        "CVE-2010-1651",
        "CVE-2011-1312"
      );
      script_bugtraq_id(
        39051,
        39056,
        39567,
        39701,
        40277,
        40321,
        40322,
        40325
      );
      script_xref(name:"Secunia", value:"39140");
      script_xref(name:"Secunia", value:"39838");
    
      script_name(english:"IBM WebSphere Application Server 6.1 < 6.1.0.31 Multiple Vulnerabilities");
      script_summary(english:"Reads the version number from the SOAP port");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote application server is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "IBM WebSphere Application Server 6.1 before Fix Pack 31 appears to be
    running on the remote host.  As such, it is reportedly affected by
    multiple vulnerabilities :
    
      - It is possible for Administrator role members to modify
        primary administrative id via the administrative
        console. (PK88606)
    
      - An unspecified cross-site scripting vulnerability in the
        Administration Console. (PK97376)
    
      - An error when defining a wsadmin scripting
        'J2CConnectionFactory' object results in passwords being
        stored unencrypted in the resources.xml file. (PK95089)
    
      - An error related to the ORB ListenerThread could allow
        remote, authenticated users to cause a denial of service.
        (PK93653)
    
      - An information disclosure vulnerability in SIP logging
        could allow a local, authenticated attacker to gain
        access to sensitive information. (PM08892)
    
      - An information disclosure vulnerability exists when the
        '-trace' option (aka debugging mode) is enabled since
        WAS executes debugging statements that print string
        representations of unspecified objects. (PM06839)
    
      - The Web Container does not properly handle long
        filenames, which may cause it to respond with the
        incorrect file, resulting in the disclosure of
        potentially sensitive information. (PM06111)
    
      - An error occurs when the Web Contained calls
        response.sendRedirect with a Transfer-Encoding:
        chunked, which could cause a denial of service.
        (PM08760)
    
      - WS-Security processing problems with PKIPath and
        PKCS#7 tokens could lead to a security bypass
        vulnerability. (PK96427)
    
      - An Out-Of-Memory condition related to the
        Deployment Manager and nodeagent could lead to a
        denial of service. (PM05663)");
    
      script_set_attribute(attribute:"see_also",value:"http://www-01.ibm.com/support/docview.wss?uid=swg21404665");
      script_set_attribute(attribute:"see_also",value:"http://www-01.ibm.com/support/docview.wss?uid=swg27009778");
      script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg27004980");
      script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg1PK88606");
      script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?rs=180&uid=swg27007951#61031");
      script_set_attribute(attribute:"solution", value:
    "If using WebSphere Application Server, apply Fix Pack 31 (6.1.0.31) or
    later. 
    
    Otherwise, if using embedded WebSphere Application Server packaged with
    Tivoli Directory Server, apply the latest recommended eWAS fix pack.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
      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:"2010/03/29");
      script_set_attribute(attribute:"patch_publication_date", value:"2009/03/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2010/04/06");
    
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:websphere_application_server");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Web Servers");
    
      script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");
    
      script_dependencies("websphere_detect.nasl");
      script_require_ports("Services/www", 8880, 8881);
      script_require_keys("www/WebSphere");
    
      exit(0);
    }
    
    
    include("global_settings.inc");
    include("misc_func.inc");
    include("http.inc");
    
    port = get_http_port(default:8880, embedded: 0);
    
    
    version = get_kb_item("www/WebSphere/"+port+"/version");
    if (isnull(version)) exit(1, "Failed to extract the version from the IBM WebSphere Application Server instance listening on port " + port + ".");
    if (version =~ "^[0-9]+(\.[0-9]+)?$")
      exit(1, "Failed to extract a granular version from the IBM WebSphere Application Server instance listening on port " + port + ".");
    
    ver = split(version, sep:'.', keep:FALSE);
    for (i=0; i<max_index(ver); i++)
      ver[i] = int(ver[i]);
    
    if (ver[0] == 6 && ver[1] == 1 && ver[2] == 0 && ver[3] < 31)
    {
      if (report_verbosity > 0)
      {
        source = get_kb_item_or_exit("www/WebSphere/"+port+"/source");
    
        report =
          '\n  Source            : ' + source +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 6.1.0.31' +
          '\n';
        security_warning(port:port, extra:report);
      }
      else security_warning(port);
      exit(0);
    }
    else exit(0, "The WebSphere Application Server "+version+" instance listening on port "+port+" is not affected.");
    
  • NASL familyWeb Servers
    NASL idWEBSPHERE_7_0_0_11.NASL
    descriptionIBM WebSphere Application Server 7.0 before Fix Pack 11 appears to be running on the remote host. As such, it is reportedly affected by the following vulnerabilities : - WS-Security processing problems with PKIPath and PKCS#7 tokens could lead to a security bypass vulnerability. (PK96427) - An OutOfMemory condition related to the Deployment Manager and nodeagent could lead to a denial of service. (PM05663) - The Web Container does not properly handle long filenames, which may cause it to respond with the incorrect file, resulting in the disclosure of potentially sensitive information. (PM06111) - An information disclosure vulnerability exists when the
    last seen2020-06-01
    modified2020-06-02
    plugin id47112
    published2010-06-22
    reporterThis script is Copyright (C) 2010-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/47112
    titleIBM WebSphere Application Server 7.0 < Fix Pack 11 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(47112);
      script_version("1.16");
      script_cvs_date("Date: 2018/08/06 14:03:16");
    
      script_cve_id(
        "CVE-2010-0774",
        "CVE-2010-0775",
        "CVE-2010-0776",
        "CVE-2010-0777",
        "CVE-2010-0778",
        "CVE-2010-0779",
        "CVE-2010-1650",
        "CVE-2010-1651",
        "CVE-2010-2324",
        "CVE-2010-2325",
        "CVE-2010-2326",
        "CVE-2010-2327",
        "CVE-2010-2328"
      );
      script_bugtraq_id(
        40277,
        40321,
        40322,
        40325,
        40694,
        40699,
        41081,
        41084,
        41085,
        41091,
        41148,
        41149
      );
      script_xref(name:"Secunia", value:"39838");
      script_xref(name:"Secunia", value:"40096");
    
      script_name(english:"IBM WebSphere Application Server 7.0 < Fix Pack 11 Multiple Vulnerabilities");
      script_summary(english:"Reads the version number from the SOAP port");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote application server is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "IBM WebSphere Application Server 7.0 before Fix Pack 11 appears to be
    running on the remote host.  As such, it is reportedly affected by the
    following vulnerabilities :
    
      - WS-Security processing problems with PKIPath and
        PKCS#7 tokens could lead to a security bypass
        vulnerability. (PK96427)
    
      - An OutOfMemory condition related to the
        Deployment Manager and nodeagent could lead to a
        denial of service. (PM05663)
    
      - The Web Container does not properly handle long
        filenames, which may cause it to respond with the
        incorrect file, resulting in the disclosure of
        potentially sensitive information. (PM06111)
    
      - An information disclosure vulnerability exists when the
        '-trace' option (aka debugging mode) is enabled since
        WAS executes debugging statements that print string
        representations of unspecified objects. (PM06839)
    
      - An error occurs when the Web Contained calls
        response.sendRedirect with a Transfer-Encoding:
        chunked, which could cause a denial of service.
        (PM08760)
    
      - An information disclosure vulnerability in SIP logging
        could allow a local, authenticated attacker to gain
        access to sensitive information. (PM08892)
    
      - A possible NullPointerException when handling large
        chunked gzip encoded data. (PM08894)
    
      - A possible link injection vulnerability. (PM09250)
    
      - The web server can fail during an upload over SSL that
        is larger than 2 GB. (PM10270)
    
      - Administration console sensitive information might appear in
        addNode.log when -trace option enabled. (PM10684)
    
      - Cross-site scripting and URL injection vulnerability
        in admin console. (PM11778)");
    
      script_set_attribute(attribute:"see_also",value:"http://www-01.ibm.com/support/docview.wss?uid=swg21404665");
      script_set_attribute(attribute:"see_also",value:"http://www-01.ibm.com/support/docview.wss?uid=swg27009778");
      script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?rs=180&uid=swg27014463#70011");
      script_set_attribute(attribute:"solution", value:
    "If using WebSphere Application Server, apply Fix Pack 11 (7.0.0.11) or
    later. 
    
    Otherwise, if using embedded WebSphere Application Server packaged with
    Tivoli Directory Server, apply the latest recommended eWAS fix pack.");
      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(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2010/04/22");
      script_set_attribute(attribute:"patch_publication_date", value:"2010/06/18");
      script_set_attribute(attribute:"plugin_publication_date", value:"2010/06/22");
    
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:websphere_application_server");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Web Servers");
    
      script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");
    
      script_dependencies("websphere_detect.nasl");
      script_require_ports("Services/www", 8880, 8881);
      script_require_keys("www/WebSphere");
    
      exit(0);
    }
    
    include("global_settings.inc");
    include("misc_func.inc");
    include("http.inc");
    
    port = get_http_port(default:8880, embedded: 0);
    
    
    version = get_kb_item("www/WebSphere/"+port+"/version");
    if (isnull(version)) exit(1, "Failed to extract the version from the IBM WebSphere Application Server instance listening on port " + port + ".");
    if (version =~ "^[0-9]+(\.[0-9]+)?$")
      exit(1, "Failed to extract a granular version from the IBM WebSphere Application Server instance listening on port " + port + ".");
    
    ver = split(version, sep:'.', keep:FALSE);
    for (i=0; i<max_index(ver); i++)
      ver[i] = int(ver[i]);
    
    if (ver[0] == 7 && ver[1] == 0 && ver[2] == 0 && ver[3] < 11)
    {
      set_kb_item(name:'www/'+port+'/XSS', value:TRUE);
    
      if (report_verbosity > 0)
      {
        source = get_kb_item_or_exit("www/WebSphere/"+port+"/source");
    
        report =
          '\n  Source            : ' + source +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 7.0.0.11' +
          '\n';
        security_hole(port:port, extra:report);
      }
      else security_hole(port);
      exit(0);
    }
    else exit(0, "The WebSphere Application Server "+version+" instance listening on port "+port+" is not affected.");
    
  • NASL familyWeb Servers
    NASL idWEBSPHERE_6_0_2_41.NASL
    descriptionIBM WebSphere Application Server 6.0 before Fix Pack 41 for 6.0.2 appears to be running on the remote host. As such, it is reportedly affected by multiple vulnerabilities : - An unspecified cross-site scripting vulnerability in the Administration Console. (PK97376) - An error when defining a wsadmin scripting
    last seen2020-06-01
    modified2020-06-02
    plugin id45429
    published2010-04-06
    reporterThis script is Copyright (C) 2010-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/45429
    titleIBM WebSphere Application Server 6.0 < 6.0.2.41 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(45429);
      script_version("1.12");
      script_cvs_date("Date: 2018/08/06 14:03:16");
    
      script_cve_id("CVE-2010-0768", "CVE-2010-0769", "CVE-2010-0770", "CVE-2010-0774", "CVE-2010-0775");
      script_bugtraq_id(39051, 39056, 40322, 40325);
      script_xref(name:"Secunia", value:"39140");
      script_xref(name:"Secunia", value:"39838");
    
      script_name(english:"IBM WebSphere Application Server 6.0 < 6.0.2.41 Multiple Vulnerabilities");
      script_summary(english:"Reads the version number from the SOAP port");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote application server is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "IBM WebSphere Application Server 6.0 before Fix Pack 41 for 6.0.2
    appears to be running on the remote host.  As such, it is reportedly
    affected by multiple vulnerabilities :
    
      - An unspecified cross-site scripting vulnerability in the
        Administration Console. (PK97376)
    
      - An error when defining a wsadmin scripting 
        'J2CConnectionFactory' object results in passwords being
        stored unencrypted in the resources.xml file. (PK95089)
    
      - An error related to the ORB ListenerThread could allow
        remote, authenticated users to cause a denial of service.
        (PK93653)
    
      - WS-Security processing problems with PKIPath and
        PKCS#7 tokens could lead to a security bypass
        vulnerability. (PK96427)
    
      - An OutOfMemory condition related to the
        Deployment Manager and nodeagent cause lead to a
        denial of service. (PM05663)");
    
      script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg27004980");
      script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?rs=180&uid=swg27006876");
      script_set_attribute(attribute:"solution", value:"Apply Fix Pack 41 for version 6.0.2 (6.0.2.41) or later.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
      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:"2010/03/29");
      script_set_attribute(attribute:"patch_publication_date", value:"2009/03/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2010/04/06");
    
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:websphere_application_server");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Web Servers");
    
      script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");
    
      script_dependencies("websphere_detect.nasl");
      script_require_ports("Services/www", 8880, 8881);
      script_require_keys("www/WebSphere");
    
      exit(0);
    }
    
    
    include("global_settings.inc");
    include("misc_func.inc");
    include("http.inc");
    
    port = get_http_port(default:8880, embedded: 0);
    
    
    version = get_kb_item("www/WebSphere/"+port+"/version");
    if (isnull(version)) exit(1, "Failed to extract the version from the IBM WebSphere Application Server instance listening on port " + port + ".");
    if (version =~ "^[0-9]+(\.[0-9]+)?$")
      exit(1, "Failed to extract a granular version from the IBM WebSphere Application Server instance listening on port " + port + ".");
    
    ver = split(version, sep:'.', keep:FALSE);
    for (i=0; i<max_index(ver); i++)
      ver[i] = int(ver[i]);
    
    if (
      (ver[0] == 6 && ver[1] == 0 && ver[2] < 2) ||
      (ver[0] == 6 && ver[1] == 0 && ver[2] == 2 && ver[3] < 41)
    )
    {
      if (report_verbosity > 0)
      {
        source = get_kb_item_or_exit("www/WebSphere/"+port+"/source");
    
        report = 
          '\n  Source            : ' + source + 
          '\n  Installed version : ' + version +
          '\n  Fixed version     : 6.0.2.41' +
          '\n';
        security_warning(port:port, extra:report);
      }
      else security_warning(port);
      exit(0);
    }
    else exit(0, "The WebSphere Application Server "+version+" instance listening on port "+port+" is not affected.");
    

Seebug

bulletinFamilyexploit
descriptionCVE ID: CVE-2010-0774 IBM Websphere应用服务器以Java和Servlet引擎为基础,支持多种HTTP服务,可帮助用户完成从开发、发布到维护交互式的动态网站的所有工作。 WebSphere应用服务器的JAX-RPC WS-Security 1.0和JAX-WS运行时实现没有正确地处理PKCS#7和PKIPath令牌,远程攻击者可以通过向服务器提交恶意请求绕过预期的访问限制执行非授权操作。 IBM Websphere Application Server 7.0 IBM Websphere Application Server 6.1 IBM Websphere Application Server 6.0 厂商补丁: IBM --- 目前厂商已经发布了升级补丁以修复这个安全问题,请到厂商的主页下载: http://www-01.ibm.com/support/docview.wss?rs=180&amp;uid=swg27004980
idSSV:19660
last seen2017-11-19
modified2010-05-20
published2010-05-20
reporterRoot
titleIBM WebSphere应用服务器PKIPath和PKCS#7令牌绕过安全检查漏洞