Vulnerabilities > CVE-2013-5971 - Permissions, Privileges, and Access Controls vulnerability in VMWare Vcenter Server
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Session fixation vulnerability in the vSphere Web Client Server in VMware vCenter Server 5.0 before Update 3 allows remote attackers to hijack web sessions and gain privileges via unspecified vectors.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 9 |
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 VMware ESX Local Security Checks NASL id VMWARE_VMSA-2013-0012.NASL description a. VMware ESXi and ESX contain a vulnerability in hostd-vmdb. To exploit this vulnerability, an attacker must intercept and modify the management traffic. Exploitation of the issue may lead to a Denial of Service of the hostd-vmdb service. To reduce the likelihood of exploitation, vSphere components should be deployed on an isolated management network. VMware would like to thank Alex Chapman of Context Information Security for reporting this issue to us. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-5970 to this issue. b. VMware vSphere Web Client Server Session Fixation Vulnerability The VMware vSphere Web Client Server contains a vulnerability in the handling of session IDs. To exploit this vulnerability, an attacker must know a valid session ID of an authenticated user. Exploitation of the issue may lead to Elevation of Privilege. To reduce the likelihood of exploitation, vSphere components should be deployed on an isolated management network. VMware would like to thank Alexey Tyurin of DSecRG for reporting this issue to us. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-5971 to this issue. c. vCenter and Update Manager, Oracle JRE update 1.6.0_51. Oracle JRE is updated to version 1.6.0_51, which addresses multiple security issues that existed in earlier releases of Oracle JRE. Oracle has documented the CVE identifiers that are addressed in JRE 1.6.0_51 in the Oracle Java SE Critical Patch Update Advisory of June 2013. The References section provides a link to this advisory. last seen 2020-06-01 modified 2020-06-02 plugin id 70527 published 2013-10-20 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/70527 title VMSA-2013-0012 : VMware vSphere updates address multiple vulnerabilities NASL family Misc. NASL id VMWARE_VCENTER_VMSA-2013-0012.NASL description The version of VMware vCenter installed on the remote host is 5.0 prior to update 3 or 5.1 prior to update 2. It is, therefore, potentially affected by the following vulnerabilities : - A vulnerability exists in the handling of session IDs, which could lead to an escalation of privileges. (CVE-2013-5971) - Multiple vulnerabilities exists in the bundled version of the Java Runtime Environment. last seen 2020-06-01 modified 2020-06-02 plugin id 70612 published 2013-10-25 reporter This script is Copyright (C) 2013-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/70612 title VMware Security Updates for vCenter Server (VMSA-2013-0012)