Security Bulletin
Summary
There are multiple vulnerabilities in the IBM HTTP Server used by WebSphere Application Server.
Apache HTTP Server could provide weaker than expected security, caused by URL normalization inconsistencies. Apache HTTP Server could allow a local authenticated attacker to gain elevated privileges on the system.
Vulnerability Details
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)
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 versions and releases of IBM HTTP Server (powered by Apache) component in all editions of WebSphere Application Server and bundling products.
- Version 9.0
- Version 8.5
Remediation/Fixes
Please see Updating your environment in the KnowlegeCenter for information on applying service.
Alternatively, delete the vulnerable service instance and create a new instance.
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References
Change History
04 June 2019 - 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.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
04 June 2019
UID
ibm10882256