F5 BIG-IP XML information disclosure

f5bigip-xml-info-disclosure (81426) The risk level is classified as MediumMedium Risk

Description:

F5 BIG-IP could allow a remote attacker to obtain sensitive information, caused by an XML External Entity Injection (XXE) error when processing XML data. By sending specially-crafted XML data, a remote authenticated attacker could exploit this vulnerability to download arbitrary files from the system and gain unauthorized access to the critical /etc/shadow file and obtain the password hash and other sensitive information.

*CVSS:

Base Score: 5.5
  Access Vector: Network
  Access Complexity: Low
  Authentication: Single
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 4.3
  Exploitability: Proof-of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Upgrade to the latest version of BIG-IP (11.2.1 HF3 or later), available from the F5 Web Site. See References.

References:

  • BugTraq Mailing List, Tue Jan 22 2013 - 07:22:29 CST: SEC Consult SA-20130122-0 :: F5 BIG-IP XML External Entity Injection vulnerability.
  • F5 Web Site: F5 BIG-IP.
  • Packet Storm Web site: F5 BIG-IP 11.2.0 XML External Entity Injection.
  • BID-57496: F5 Networks BIG-IP CVE-2012-2997 XML External Entity Injection Vulnerability
  • CVE-2012-2997: XML External Entity (XXE) vulnerability in sam/admin/vpe2/public/php/server.php in F5 BIG-IP 10.0.0 through 10.2.4 and 11.0.0 through 11.2.1 allows remote authenticated users to read arbitrary files via a crafted XML file.
  • SA51986: F5 Products XML Entity References Information Disclosure Vulnerability

Platforms Affected:

  • F5 Big-IP 11.2.0

Reported:

Jan 22, 2013

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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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