CVE-2014-5398: Schneider Electric Wonderware Input Validation

Published Aug 28, 2014

Updated

Schneider Electric Wonderware Information Server (WIS) Portal 4.0 SP1 through 5.5 allows remote attackers to read arbitrary files or cause a denial of service via an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

Affected Software

5 affected components

Invensys Wonderware Information Server=4.0-sp1

Invensys Wonderware Information Server=4.5

Invensys Wonderware Information Server=5.0

Invensys Wonderware Information Server=5.5

Remediation

Information

Schneider Electric has created an update for WIS web pages and components to address the vulnerabilities listed in this advisory. Customers using all versions of WIS are affected and should upgrade to WIS Version 5.5 and then apply the security update. Customers using the affected versions of WIS should set the security level settings in the Internet browser to “Medium – High” to minimize the risks presented by these vulnerabilities. In addition, the Wonderware Information Server Portal can be configured to use HTTPS that will require additional steps as documented in the products user documentation. Schneider Electric has released a security bulletin titled “Multiple Vulnerabilities in Wonderware Information Server LFSEC00000102” to announce the security update, which is available at the following location: https://gcsresource.invensys.com/support/docs/_SecurityBulletins/Security_Bulletin_LFSEC00000102.pdf

Event History

Aug 28, 2014

CVE Published

via MITRE·01:00 AM

Data Sourced

via MITRE·01:00 AM

RemedyDescriptionSeverityWeakness

Data Sourced

via NVD·01:55 AM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2014-5398?

CVE-2014-5398 has a medium severity rating due to its potential to allow remote attackers to read arbitrary files or cause a denial of service.

How do I fix CVE-2014-5398?

To address CVE-2014-5398, ensure you update the Wonderware Information Server to a version that is not vulnerable, ideally the latest available patch.

Which versions of Schneider Electric Wonderware Information Server are affected by CVE-2014-5398?

CVE-2014-5398 affects versions 4.0 SP1 through 5.5 of Schneider Electric Wonderware Information Server.

What can attackers do with CVE-2014-5398?

Attackers exploiting CVE-2014-5398 can read arbitrary files or execute a denial of service attack against the server.

Is configuration change required to mitigate CVE-2014-5398?

Mitigation of CVE-2014-5398 primarily involves applying updates rather than configuration changes, as it addresses vulnerabilities in the software itself.