Security Advisories and Notifications

Security Advisory: (BEA06-120.01)

From: Oracle Corporation

Minor Subject: A default internal servlet allowed local file system access.

Product(s) Affected: WebLogic Server

This security advisory (BEA06-120.01) contains updated information in Section I.

This security advisory (BEA06-120.01) contains a correction to the 'platform affected' specified in Section I. The previous version erroneously specified that the vulnerability affected all platforms, however it only affects Microsoft Windows.

Please disregard security advisory BEA06-120.00, as this advisory, BEA06-120.01, supersedes it.

Threat level: High

This vulnerability can be exploited by any user with HTTP access to the server.

Severity: High

Successfully exploiting the attack could allow files on the local filesystem to be read.

A problem was identified that could potentially cause a security vulnerability in certain versions of WebLogic Server. A patch is available to correct this problem (see Section II). Oracle treats potential security problems with a high degree of urgency and endeavors to take appropriate steps to help ensure the security of our customers' systems. As a result, Oracle strongly suggests the following actions:

I. Read the following advisory.

II. Apply the suggested action.

III. If you know of any additional users interested in future security advisories, please forward them the registration instructions included in this advisory.

I. Advisory

All sites with WebLogic Server installed on Windows are vulnerable to this issue.

A default internal servlet allowed access to the local Windows filesystem.

This patch resolves the issue by ensuring that security checks are correctly carried out.

The following versions of WebLogic Server are affected by this vulnerability:

  • WebLogic Server 6.1 released through Service Pack 7, on Microsoft Windows


Oracle strongly recommends the following course of actions.

WebLogic Server version 6.1

  1. Upgrade to WebLogic Server 6.1 Service Pack 7.
  2. Download and apply the patch #7824761 from OracleMetaLink as per the instructions below:
    1. Select the Patches and Updates tab after logging in to OracleMetaLink.
    2. Click Simple Search.
    3. In the Search By field, select Patch Number from the list.
    4. Enter the patch number. The patch number may be different for different product releases and platforms.
    5. Select the platform (or choose generic as applicable)
    6. Click Go.
    7. Click Download to download the patch./li>
  3. Place the jar for the patch in the CLASSPATH before the weblogic.jar file.


Oracle thanks S21sec for its assistance in investigating this matter.


Oracle strongly suggests that customers apply the remedies recommended in all our security advisories. Oracle also urges customers to apply every Service/Maintenance Pack as they are released. Service/Maintenance Packs include a roll-up of all bug fixes for each version of the product, as well as each of the prior Service/Maintenance Packs. Service/Maintenance Packs.

As a policy, if there are any security-related issues with any Oracle product, Oracle will distribute an advisory and instructions with the appropriate course of action. Because the security of your site, data, and code is our highest priority, we are committed to communicating all security-related issues clearly and openly.

Additional users who wish to register for product advisory distribution should follow the registration directions at:

Security issues can be reported to Oracle by following the directions at:

Thank you,

Oracle Corporation