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Security Bulletin: Multiple vulnerabilities in IBM HTTP Server used by WebSphere Application Server (CVE-2019-0211 CVE-2019-0220)

Security Bulletin


Summary

There are multiple vulnerabilities in the IBM HTTP Server used by WebSphere Application Server.
CVE-2019-0211 affects version 9 non-windows platforms only.

Vulnerability Details

CVEID: CVE-2019-0220
DESCRIPTION: Apache HTTP Server could provide weaker than expected security, caused by URL normalization inconsistencies. A remote attacker could exploit this vulnerability to launch further attacks on the system.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/158948 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID: CVE-2019-0211
DESCRIPTION: Apache HTTP Server could allow a local authenticated attacker to gain elevated privileges on the system, caused by the execution of code in less-privileged child processes or threads from modules' scripts. By manipulating the scoreboard, an attacker could exploit this vulnerability to execute arbitrary code on the system with root privileges.
CVSS Base Score: 8.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/158929 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H)

Affected Products and Versions

These vulnerabilities affect the following version and release of IBM HTTP Server (powered by Apache) component in all editions of WebSphere Application Server and bundling products.  Note: CVE-2019-0211 affects version 9 only.  CVE-2019-0211 does not affect IBM HTTP Server on the Windows platform.

  • Version 9.0
  • Version 8.5
  • Version 8.0
  • Version 7.0

Remediation/Fixes

For V9.0.0.0 through 9.0.0.11:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH09869
--OR--
· Apply Fix Pack 9.0.5.0 or later (targeted availability 2Q 2019).

For V8.5.5.0 through 8.5.5.15:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH09869
--OR--
· Apply Fix Pack 8.5.5.16 or later (targeted availability 3Q 2019).

For V8.0.0.0 through 8.0.0.15:
· Upgrade to 8.0.0.15 and then apply Interim Fix PH09869
 
For V7.0.0.0 through 7.0.0.45:
· Upgrade to 7.0.0.45 then apply Interim Fix PH09869

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Important Note

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.

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

22 April 2019: original document published
23 April 2019: clarified title

*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.

Disclaimer

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.

Document information

More support for: WebSphere Application Server

Component: IBM HTTP Server

Software version: 7.0, 8.0, 8.5, 9.0

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows, z/OS

Software edition: Advanced, Base, Enterprise, Network Deployment, Single Server

Reference #: 0880413

Modified date: 23 April 2019