Echo2 XML information disclosure

echo2-xml-information-disclosure (49167) The risk level is classified as LowLow Risk

Description:

Echo2 could allow a remote attacker to obtain sensitive information, caused by the improper verification of XML data passed to the Echo Engine. By sending a specially-crafted HTTP POST request, a remote attacker could inject arbitrary XML declarations to create a new XML entity containing restricted content. An attacker could exploit this vulnerability to view the arbitrary XML file and obtain sensitive information.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 3.4
  Exploitability: Proof-of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Upgrade to the latest version of Echo2 (2.1.1 or later), available from the Echo Web Framework Web site. See References.

References:

  • Echo Web Framework Web site: Security Update: Echo 2.1.1, 3.0.b6 Available.
  • SEC Consult Security Advisory < 20090305-0 >: NextApp Echo XML Injection Vulnerability.
  • BID-34060: NextApp Echo XML Parsing Local File Disclosure Vulnerability
  • CVE-2009-5135: The Java XML parser in Echo before 2.1.1 and 3.x before 3.0.b6 allows remote attackers to read arbitrary files via a request containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.
  • OSVDB ID: 52889: NextApp Echo2 Engine XML External Entity Processing Privilege Escalation
  • SA34218: Echo2 XML Processing Information Disclosure Vulnerability
  • VUPEN/ADV-2009-0653: NextApp Echo2 XML Data Remote Information Disclosure Vulnerability

Platforms Affected:

  • NextApp Echo2 2.1.0 rc2

Reported:

Feb 24, 2009

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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