The Edge Component Caching Proxy in IBM WebSphere Application Server could provide weaker than expected security. This is only an issue if you are using the Edge Caching proxy.
DESCRIPTION: IBM WebSphere Application Server Edge Component Caching Proxy could provide weaker than expected security. This could allow an attacker to decrypt information more quickly and obtain sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/106218 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
The following IBM WebSphere Application Server Versions are affected:
- Version 8.5 Full Profile
- Version 8.0
The recommended solution is to apply the Fix Pack or PTF for each named product as soon as practical.
Apply an Interim Fix, Fix Pack or PTF containing APAR PI41476, as noted below:
For IBM WebSphere Application Server
For V126.96.36.199 through 188.8.131.52:
- Upgrade to 184.108.40.206 fix pack level then apply Interim Fix 8.5.5-WS-EDGECP-FP00000071
- Upgrade to 220.127.116.11 fix pack level then apply Interim Fix 8.5.5-WS-EDGECP-FP00000062
- Apply Fix Pack 8 (18.104.22.168), or later.
For V22.214.171.124 through 126.96.36.199:
- Upgrade to 188.8.131.52 fix pack level then apply Interim Fix 8.0.0-WS-EDGECP-FP000000111
- Upgrade to 184.108.40.206 fix pack level then apply Interim Fix 8.0.0-WS-EDGECP-FP000000101
- Apply Fix Pack 12 (220.127.116.11), or later.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.
11 December 2015: original document published
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
15 June 2018