Vulnerabilities > CVE-2009-2091 - Permissions, Privileges, and Access Controls vulnerability in IBM Websphere Application Server
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
NONE Availability impact
NONE Summary
The System Management/Repository component in IBM WebSphere Application Server (WAS) 7.0 before 7.0.0.5 on z/OS uses weak file permissions for new applications, which allows remote attackers to obtain sensitive information via unspecified vectors.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 |
Common Weakness Enumeration (CWE)
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 family Web Servers NASL id WEBSPHERE_7_0_0_5.NASL description IBM WebSphere Application Server 7.0 before Fix Pack 5 appears to be running on the remote host. As such, it is reportedly affected by multiple vulnerabilities : - Non-standard HTTP methods are allowed. (PK73246) - If the admin console is directly accessed from HTTP, the console fails to redirect the connection to a secure login page. (PK77010) - An error in Single Sign-on (SSO) with SPNEGO implementation could allow a remote attacker to bypass security restrictions. (PK77465) - last seen 2020-06-01 modified 2020-06-02 plugin id 40823 published 2009-08-31 reporter This script is Copyright (C) 2009-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/40823 title IBM WebSphere Application Server 7.0 < Fix Pack 5 code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(40823); script_version("1.13"); script_cvs_date("Date: 2018/08/06 14:03:16"); script_cve_id( "CVE-2009-0899", "CVE-2009-1195", "CVE-2009-1898", "CVE-2009-1899", "CVE-2009-1900", "CVE-2009-1901", "CVE-2009-2085", "CVE-2009-2087", "CVE-2009-2088", "CVE-2009-2089", "CVE-2009-0899", "CVE-2009-2090", "CVE-2009-2091", "CVE-2009-2092" ); script_bugtraq_id(36153, 36154, 36155, 36156, 36157, 36158, 36163); script_name(english:"IBM WebSphere Application Server 7.0 < Fix Pack 5"); 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 5 appears to be running on the remote host. As such, it is reportedly affected by multiple vulnerabilities : - Non-standard HTTP methods are allowed. (PK73246) - If the admin console is directly accessed from HTTP, the console fails to redirect the connection to a secure login page. (PK77010) - An error in Single Sign-on (SSO) with SPNEGO implementation could allow a remote attacker to bypass security restrictions. (PK77465) - 'wsadmin' is affected by a security exposure. (PK77495) - Security flag 'isSecurityEnabled' is incorrectly set after migrating from VMM. (PK78134) - Use of insecure password obfuscation algorithm by Web services could result in weaker than expected security provided the client module specifies a password in ibm-webservicesclient-bind.xmi and target environment has custom password encryption enabled. (PK79275) - After upgrading from WebSphere Application Server V6.1 to V7.0 with tracing enabled, an attacker may be able view sensitive information by viewing the trace files. (PK80337) - If CSIv2 Security is configured with Identity Assertion, it may be possible for a remote attacker to bypass security restrictions. (PK83097) - New applications deployed in WebSphere Application Server for z/OS prior to 1.8 are saved on the file system with insecure privileges resulting in disclosure of sensitive information. (PK83308) - Configservice APIs could display sensitive information. (PK84999) - Vulnerabilities in Apache HTTP server could allow a local user to gain elevated privileges. (PK86232) - A error in 'wsadmin' could allow a remote attacker to bypass security restrictions. (PK86328) - A vulnerability in portlet serving enable parameter could allow an attacker to bypass security restrictions and gain unauthorized access to the application. (PK89385)"); script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg27014463#7005"); script_set_attribute(attribute:"solution", value:"Apply Fix Pack 5 (7.0.0.5) or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/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(16, 200, 255, 264, 287); script_set_attribute(attribute:"vuln_publication_date", value:"2009/07/27"); script_set_attribute(attribute:"patch_publication_date", value:"2009/07/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2009/08/31"); 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) 2009-2018 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); 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] < 5) { 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 : 7.0.0.5' + '\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_6_1_0_27.NASL description IBM WebSphere Application Server 6.1 before Fix Pack 27 appears to be running on the remote host. As such, it is reportedly affected by multiple vulnerabilities : - The Eclipse help system included with WebSphere Application Server is affected by a cross-site scripting vulnerability. (PK78917) - It may be possible to bypass security restrictions using a specially crafted HTTP HEAD method. (PK83258) - New applications deployed in WebSphere Application Server for z/OS prior to 1.8 are saved on the file system with insecure privileges resulting in disclosure of sensitive information. (PK83308) - If JAAS-J2C Authentication Data is configured using wsadmin scripts, the password value may appear in FFDC logs. (PK86137) - Apache APR-util is affected by a denial of service issue. (PK88341) - Due to an error in expat XML parser, APR-util is affected by a denial of service issue. (PK88342) - It may be possible to trigger a denial of service attack due to errors in Fix Packs 6.1.0.23 and 6.1.0.25. (PK91709) last seen 2020-06-01 modified 2020-06-02 plugin id 41057 published 2009-09-23 reporter This script is Copyright (C) 2009-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/41057 title IBM WebSphere Application Server < 6.1.0.27 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(41057); script_version("1.19"); script_cvs_date("Date: 2018/08/06 14:03:16"); script_cve_id( "CVE-2009-0023", "CVE-2009-1955", "CVE-2009-1956", "CVE-2009-2091", "CVE-2009-2742", "CVE-2009-2743", "CVE-2009-2744", "CVE-2009-3106" ); script_bugtraq_id(35221, 35251, 35253, 36157, 36455, 36456, 36458); script_name(english:"IBM WebSphere Application Server < 6.1.0.27 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 27 appears to be running on the remote host. As such, it is reportedly affected by multiple vulnerabilities : - The Eclipse help system included with WebSphere Application Server is affected by a cross-site scripting vulnerability. (PK78917) - It may be possible to bypass security restrictions using a specially crafted HTTP HEAD method. (PK83258) - New applications deployed in WebSphere Application Server for z/OS prior to 1.8 are saved on the file system with insecure privileges resulting in disclosure of sensitive information. (PK83308) - If JAAS-J2C Authentication Data is configured using wsadmin scripts, the password value may appear in FFDC logs. (PK86137) - Apache APR-util is affected by a denial of service issue. (PK88341) - Due to an error in expat XML parser, APR-util is affected by a denial of service issue. (PK88342) - It may be possible to trigger a denial of service attack due to errors in Fix Packs 6.1.0.23 and 6.1.0.25. (PK91709)"); 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=swg1PK91241"); script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg24023947"); script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?rs=180&uid=swg27007951#61027"); script_set_attribute(attribute:"solution", value: "If using WebSphere Application Server, apply Fix Pack 27 (6.1.0.27) 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:P/I:N/A:N"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_cwe_id(79, 119, 189, 264, 399); script_set_attribute(attribute:"vuln_publication_date", value:"2009/09/21"); script_set_attribute(attribute:"patch_publication_date", value:"2009/09/21"); script_set_attribute(attribute:"plugin_publication_date", value:"2009/09/23"); 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) 2009-2018 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); 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] < 27) { 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 : 6.1.0.27' + '\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.");