Vulnerabilities > CVE-2012-0717 - Improper Authentication vulnerability in IBM Websphere Application Server
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
NONE Integrity impact
PARTIAL Availability impact
NONE Summary
IBM WebSphere Application Server 7.0 before 7.0.0.23, when a certain SSLv2 configuration with client authentication is used, allows remote attackers to bypass X.509 client-certificate authentication via unspecified vectors.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Authentication Abuse An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
- 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.
- Utilizing REST's Trust in the System Resource to Register Man in the Middle This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
- Man in the Middle Attack This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.
Nessus
NASL family Web Servers NASL id WEBSPHERE_6_1_0_43.NASL description IBM WebSphere Application Server 6.1 before Fix Pack 43 appears to be running on the remote host. As such, it is potentially affected by the following vulnerabilities : - An unspecified error exists related to WS-Security enabled JAX-RPC applications. (PM45181) - Insecure file permissions are applied to the files in the last seen 2020-06-01 modified 2020-06-02 plugin id 58594 published 2012-04-04 reporter This script is Copyright (C) 2012-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/58594 title IBM WebSphere Application Server 6.1 < 6.1.0.43 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(58594); script_version("1.10"); script_cvs_date("Date: 2018/08/06 14:03:16"); script_cve_id( "CVE-2011-1376", "CVE-2011-1377", "CVE-2011-4889", "CVE-2012-0193", "CVE-2012-0716", "CVE-2012-0717", "CVE-2012-0720" ); script_bugtraq_id( 50310, 51420, 51441, 52250, 52721, 52722, 52723, 52724 ); script_name(english:"IBM WebSphere Application Server 6.1 < 6.1.0.43 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 43 appears to be running on the remote host. As such, it is potentially affected by the following vulnerabilities : - An unspecified error exists related to WS-Security enabled JAX-RPC applications. (PM45181) - Insecure file permissions are applied to the files in the '$WAS_HOME/systemapps/isclite.ear' and '$WAS_HOME/bin/client_ffdc' directories. These permissions can allow a local attacker read or write files in those directories. Note this issue only affects the application on the IBM i operating system. (PM49712) - An error exists in the class 'javax.naming.directory.AttributeInUseException' and can allow old passwords to still provide access. This error is triggered when passwords are updated by using IBM Tivoli Directory Server. (PM52049) - Unspecified cross-site scripting issues exist related to the administrative console. (PM52274, PM53132) - SSL client certificate authentication can be bypassed when all of the following are true (PM52351) : - SSL is enabled with 'SSLEnable' - SSL client authentication is enabled with 'SSLClientAuth required_reset'. This is not enabled by default. Also note, 'SSLClientAuth required' is not affected - SSLv2 has not been disabled with 'SSLProtocolDisable SSLv2' - 'SSLClientAuthRequire' is not enabled - An issue related to the weak randomization of Java hash data structures can allow a remote attacker to cause a denial of service with maliciously crafted POST requests. (PM53930)" ); # https://www-304.ibm.com/connections/blogs/PSIRT/entry/potential_security_vulnerability_when_using_web_based_applications_on_ibm_websphere_application_server_due_to_java_hashtable_implementation_vulnerability_cve_2012_0193?lang=en_us script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ca3789f7"); 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:"https://www-304.ibm.com/support/docview.wss?uid=swg21587015"); # PM53930 Alert script_set_attribute(attribute:"see_also", value:"https://www-304.ibm.com/support/docview.wss?uid=swg21577532"); # ftp://public.dhe.ibm.com/software/websphere/appserv/support/fixes/PM53930/readme.txt script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?609dea34"); script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg27007951#61043"); script_set_attribute(attribute:"solution", value: "If using WebSphere Application Server, apply Fix Pack 43 (6.1.0.43) 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:N/I:N/A:P"); 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:"2011/10/19"); script_set_attribute(attribute:"patch_publication_date", value:"2012/03/19"); script_set_attribute(attribute:"plugin_publication_date", value:"2012/04/04"); 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) 2012-2018 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:FALSE); version = get_kb_item_or_exit("www/WebSphere/"+port+"/version"); 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] < 43) { 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 : 6.1.0.43' + '\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 family Web Servers NASL id WEBSPHERE_7_0_0_23.NASL description IBM WebSphere Application Server 7.0 before Fix Pack 23 appears to be running on the remote host. As such, it is potentially affected by the following vulnerabilities : - A security exposure when using WS-Security could result in a user gaining elevated privileges in applications using JAX-RPC. (PM45181 / CVE-2011-1377) - SSL client certificate authentication can be bypassed when all of the following are true (PM52351) : - SSL is enabled with last seen 2020-06-01 modified 2020-06-02 plugin id 59728 published 2012-06-27 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/59728 title IBM WebSphere Application Server 7.0 < Fix Pack 23 Multiple Vulnerabilities
Seebug
bulletinFamily | exploit |
description | CVE ID: CVE-2012-0717 IBM WebSphere Application Server (WAS)是由IBM遵照开放标准,例如Java EE, XML 还有Web Services,开发并发行的一种应用服务器。 在启用特定SSL的虚拟主机配置中满足如下条件时,WebSphere Application Server允许远程攻击者绕过IBM HTTP Server上SSL客户端证书的验证: -使用“SSLEnable”启用SSL(默认不启用)。 -使用“SSLClientAuth required_reset”启用SSL客户端验证(默认不启用,“SSLClientAuth required” 不受影响) -没有使用“SSLProtocolDisable SSLv2”禁用SSLv2 -没有配置“SSLClientAuthRequire” 0 IBM WebSphere Application Server 7.0.0.23之前版本 厂商补丁: IBM WebSphere ----------- 用户可参考如下供应商提供的安全公告获得补丁信息: http://www-01.ibm.com/support/docview.wss?uid=swg21595172 |
id | SSV:60228 |
last seen | 2017-11-19 |
modified | 2012-06-23 |
published | 2012-06-23 |
reporter | Root |
title | IBM WebSphere Application Server安全绕过漏洞 |