Skip to main content
ExLibris
  • Subscribe by RSS
  • Ex Libris Knowledge Center

    SSL 3.0 Vulnerability ("POODLE")

    • Article Type: General
    • Product: Cross-Product
    • Product Version: All

    Engineers at Google have disclosed a vulnerability in SSLv3 that can allow a network attacker to decrypt the contents of certain encrypted web communications.

    The exploit is called POODLE (Padding Oracle On Downgraded Legacy Encryption) (CVE-2014-3566), and is made possible by the abuse of a deprecated encryption protocol included in most web browsers and web servers, for legacy site and/or browser compatibility.

    The Ex Libris Security Officer has published an announcement regarding this vulnerability: Security Update Customer Announcement-Poodle.pdf

    .

    Products Metalib, Aleph, DigiTool and Alma have been successfully tested with the following solution:

    1. In ssl.conf, add the following line after the current SSLCipherSuite directive:

     

    #   SSL Cipher Suite:List the ciphers that the client is permitted to negotiate.
    #   See the mod_ssl documentation for a complete list.

    SSLProtocol All -SSLv2 -SSLv3

    2. Restart Apache, which will start apache https without support for SSLv2 and v3 which are vulnerable for the latest security issue.

    Additional Information

    Specific to Aleph:

    • The ssl.conf file is located in ./alephe/apache/conf
    • Use util w/3/6 to restart the Apache server.
    • On Dec. 10, 2014, rep_change 2114 was added to Aleph 22: Remove support for SSLv2 and SSLv3 (which are vulnerable).

    Category: System Management (500)


    • Article last edited: 12/11/2014