ID CVE-2014-0644
Summary EMC Cloud Tiering Appliance (CTA) 10 through SP1 allows remote attackers to read arbitrary files via an api/login request containing an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, as demonstrated by reading the /etc/shadow file.
References
Vulnerable Configurations
  • EMC Cloud Tiering Appliance software 10.0
    cpe:2.3:a:emc:cloud_tiering_appliance_software:10.0
  • EMC Cloud Tiering Appliance software 10.0 Service Pack 1
    cpe:2.3:a:emc:cloud_tiering_appliance_software:10.0:sp1
  • EMC Cloud Tiering Appliance
    cpe:2.3:h:emc:cloud_tiering_appliance
CVSS
Base: 7.8 (as of 17-04-2014 - 11:06)
Impact:
Exploitability:
CWE CWE-200
CAPEC
  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • 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.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
  • Reusing Session IDs (aka Session Replay)
    This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
  • Using Slashes in Alternate Encoding
    This attack targets the encoding of the Slash characters. An attacker would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the attacker many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE NONE NONE
exploit-db via4
description EMC Cloud Tiering Appliance 10.0 - Unauthenticated XXE Arbitrary File Read. CVE-2014-0644. Webapps exploits for multiple platform
id EDB-ID:32623
last seen 2016-02-03
modified 2014-03-31
published 2014-03-31
reporter Brandon Perry
source https://www.exploit-db.com/download/32623/
title EMC Cloud Tiering Appliance 10.0 - Unauthenticated XXE Arbitrary File Read
metasploit via4
description EMC CTA v10.0 is susceptible to an unauthenticated XXE attack that allows an attacker to read arbitrary files from the file system with the permissions of the root user.
id MSF:AUXILIARY/GATHER/EMC_CTA_XXE
last seen 2019-03-07
modified 2018-07-12
published 2014-04-02
reliability Normal
reporter Rapid7
source https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/gather/emc_cta_xxe.rb
title EMC CTA v10.0 Unauthenticated XXE Arbitrary File Read
nessus via4
NASL family CGI abuses
NASL id EMC_CTA_XXE.NASL
description The remote EMC Cloud Tiering Appliance (CTA) install is affected by an arbitrary file disclosure vulnerability. It is possible to view any file on the system by utilizing XML external entity injection in specially crafted XML data sent to the REST service on the remote host. Note that hosts that are affected by this vulnerability are potentially affected by other vulnerabilities though Nessus has not tested for any additional vulnerabilities.
last seen 2019-02-21
modified 2018-11-15
plugin id 73373
published 2014-04-07
reporter Tenable
source https://www.tenable.com/plugins/index.php?view=single&id=73373
title EMC Cloud Tiering Appliance XML External Entity (XXE) Arbitrary File Disclosure
refmap via4
bugtraq 20140416 ESA-2014-028: EMC Cloud Tiering Appliance XML External Entity (XXE) and Information Disclosure Vulnerabilities
fulldisc 20140331 EMC CTA v10.0 unauthenticated XXE with root perms
misc https://gist.github.com/brandonprry/9895721
Last major update 17-04-2014 - 11:06
Published 16-04-2014 - 21:55
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