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Cisco Security Advisory

Multiple Vulnerabilities in Cisco IronPort Encryption Appliance

Advisory ID: cisco-sa-20100210-ironport

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100210-ironport

Revision 1.1

Last Updated  2014 July 30 20:11  UTC (GMT)

For Public Release 2010 February 10 16:00  UTC (GMT)

Related Resources:

View related Applied Mitigation Bulletin

Summary

Cisco IronPort Encryption Appliance devices contain two vulnerabilities that allow remote, unauthenticated access to any file on the device and one vulnerability that allows remote, unauthenticated users to execute arbitrary code with elevated privileges. There are workarounds available to mitigate these vulnerabilities.

Cisco has released free software updates that address these vulnerabilities. This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100210-ironport.

Affected Products

Vulnerable Products

The following Cisco IronPort Encryption Appliance versions are affected by these vulnerabilities:

  • Cisco IronPort Encryption Appliance 6.5 versions prior to 6.5.2
  • Cisco IronPort Encryption Appliance 6.2 versions prior to 6.2.9.1
  • Cisco IronPort PostX MAP versions prior to 6.2.9.1

The version of software that is running on a Cisco IronPort Encryption Appliance is located on the About page of the Cisco IronPort Encryption Appliance administration interface.

Note: Customers should contact IronPort support to determine which software fixes are applicable for their environment. Please consult the Obtaining Fixed Software section of this advisory for more information.

Products Confirmed Not Vulnerable

Cisco IronPort C, M, and S-Series appliances are not affected by these vulnerabilities. No other Cisco products are currently known to be affected by these vulnerabilities.

Details

Note: IronPort tracks bugs using an internal system that is not available to customers. The IronPort bug tracking identifiers are provided for reference only.

The Cisco IronPort Encryption Appliance contains two information disclosure vulnerabilities that allow remote, unauthenticated access to arbitrary files on vulnerable devices via the embedded HTTPS server. The first vulnerability affecting the Cisco IronPort Encryption Appliance administration interface is documented in IronPort bug 65921 and has been assigned Common Vulnerabilities and Exposures (CVE) identifier CVE-2010-0143. The second vulnerability affecting the WebSafe servlet is documented in IronPort bug 65922 and has been assigned Common Vulnerabilities and Exposures (CVE) identifier CVE-2010-0144.

The Cisco IronPort Encryption Appliance contains a remote code execution vulnerability that allows an unauthenticated attacker to run arbitrary code with elevated privileges on vulnerable devices via the embedded HTTPS server. The vulnerability is documented in IronPort bug 65923 and has been assigned Common Vulnerabilities and Exposures (CVE) identifier CVE-2010-0145.

Vulnerability Scoring Details

Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0.

CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response.

Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks.

Cisco has provided an FAQ to answer additional questions regarding CVSS at:

http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html

Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at:

http://intellishield.cisco.com/security/alertmanager/cvss

Arbitrary File Access Through Administrative Interface - IronPort Bug 65921

Calculate the environmental score of 65921

CVSS Base Score - 7.8

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

None

None

CVSS Temporal Score - 6.4

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

WebSafe DistributorServlet Allows Unauthenticated Arbitrary File Access - IronPort Bug 65922

Calculate the environmental score of 65922

CVSS Base Score - 7.8

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

None

None

CVSS Temporal Score - 6.4

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

Default Config Allows Unauthenticated Remote Arbitrary Code - IronPort Bug 65923

Calculate the environmental score of 65923

CVSS Base Score - 10

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 8.3

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

Impact

Successful exploitation of these vulnerabilities may allow a remote, unauthenticated attacker to access arbitrary files or execute arbitrary code with elevated privileges.

Software Versions and Fixes

When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.


Workarounds

It is possible to mitigate the administration interface file access vulnerability (IronPort Bug 65921) by using the IP address restriction feature of the administration interface to limit access to trusted hosts. Access to the administration interface is not restricted by default. To configure access limits, an administrator should navigate to Configuration -> Web Services -> Admin -> Console Security area in the Cisco IronPort Encryption Appliance administration interface.

It is possible to workaround the remote code execution vulnerability (IronPort Bug 65923) by disabling HTTP Invoker in the Cisco IronPort Encryption Appliance configuration files. To disable the HTTP Invoker, an administrator must delete several files in the PostX application home directory and remove a directive from the web server configuration. The following files must be deleted:

jboss/server/postx/deploy/http-invoker.sar
jboss/server/postx/deploy/jms/jbossmq-httpil.sar

The following directive must be removed from the jboss/server/postx/conf/jboss-service.xml web server configuration file.

     <mbean code="org.jboss.varia.deployment.BeanShellSubDeployer" 
           name="jboss.scripts:service=BSHDeployer">
      </mbean>

After deleting the files and removing the directive from the configuration file, the PostX application service must be restarted.

Additional details to implement workaround:

     cd /usr/local/postx/server/jboss/server/postx/deploy
mv jmx-console.war jmx-console-disabled.war
cd management
mv web-console.war web-console-disabled.war

Additional mitigation techniques that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory:

http://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20100210-ironport

Obtaining Fixed Software

Cisco has released free software updates that address these vulnerabilities. The affected products in this advisory are directly supported by Cisco IronPort. Customers should contact Cisco IronPort technical support at the link below to obtain software fixes. Cisco IronPort technical support will assist customers in determining the correct fixes and installation procedures. Customers should direct all warranty questions to IronPort technical support.

Note: Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades.

http://www.ironport.com/support/contact_support.html

Customers with Service Contracts

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com.

Customers Using Third-Party Support Organizations

Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory.

The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed.

Customers Without Service Contracts

Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows.

  • +1 800 553 2447 (toll free from within North America)
  • +1 408 526 7209 (toll call from anywhere in the world)
  • e-mail: tac@cisco.com

Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC.

Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages.

Exploitation and Public Announcements

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities described in this advisory.

These vulnerabilities were discovered and reported to Cisco by Jesse Michael and Alexander Senkevitch. Cisco would like to thank Jesse and Alexander for reporting these vulnerabilities to us and for working with us on a coordinated disclosure.

Status of This Notice: Final

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.


Distribution

This advisory is posted on Cisco's worldwide website at :

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100210-ironport

In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients.

  • cust-security-announce@cisco.com
  • first-bulletins@lists.first.org
  • bugtraq@securityfocus.com
  • vulnwatch@vulnwatch.org
  • cisco@spot.colorado.edu
  • cisco-nsp@puck.nether.net
  • full-disclosure@lists.grok.org.uk
  • comp.dcom.sys.cisco@newsgate.cisco.com

Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates.


Revision History

Revision 1.1 2014-July-30 Updated the Workaround section with additional details.
Revision 1.0 2010-February-10 Initial public release.

Cisco Security Procedures

Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html. This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt.


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