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Security Bulletin: Multiple Security Vulnerabilities Affect IBM WebSphere Application Server in IBM Cloud

Created by Tom Link on
Published URL:
https://www.ibm.com/support/pages/node/793597
793597

Security Bulletin


Summary

There are multiple security vulnerabilities that affect the IBM WebSphere Application Server in the IBM Cloud.

There is a timing window where there could be a privilege escalation vulnerability in WebSphere Application Server. There is a potential remote code execution vulnerability in WebSphere Application Server. There is a potential cross-site request forgery in WebSphere Application Server Admin Console. There is a potential XXE injection vulnerability in the Knowledge Center used by WebSphere Application Server. There is a potential information disclosure in WebSphere Application Server. There is a potential for weaker than expected security in WebSphere Application Server with SP800-131 transition mode and SSL_TLSv2. There is a potential denial of service with the Google Guava library that is used in WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2018-1901
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to temporarily gain elevated privileges on the system, caused by incorrect cached value being used.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152530 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2018-1904
DESCRIPTION: IBM WebSphere Application Server could allow remote attackers to execute arbitrary Java code through an administrative client class with a serialized object from untrusted sources.
CVSS Base Score: 8.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152533 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-1905
DESCRIPTION: IBM WebSphere Application Server is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152534 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)

CVEID: CVE-2018-1926
DESCRIPTION: IBM WebSphere Application Server Admin Console is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading a user to visit a malicious URL, a remote attacker could send a specially-crafted request. An attacker could exploit this vulnerability to perform CSRF attack and update available applications.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152992 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

CVEID: CVE-2018-1957
DESCRIPTION: IBM WebSphere Application Server could allow sensitive information to be available caused by mishandling of data by the application based on an incorrect return by the httpServletRequest#authenticate() API when an unprotected URI is accessed.
CVSS Base Score: 4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/153629 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2018-1996
DESCRIPTION: IBM WebSphere Application Server could provide weaker than expected security, caused by the improper TLS configuration. A remote attacker could exploit this vulnerability to obtain sensitive information using man in the middle techniques.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/154650

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)
DESCRIPTION: Google Guava is vulnerable to a denial of service, caused by improper eager allocation checks in the AtomicDoubleArray and CompoundOrdering class. By sending a specially-crafted data, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/142508 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:N/A:H)

Affected Products and Versions

This vulnerability affects the following versions and releases of IBM WebSphere Application Server in IBM Cloud:

  • Liberty
  • Version 9.0
  • Version 8.5

Remediation/Fixes

To patch an existing service instance, refer to the  IBM WebSphere Application Server bulletins listed below

Please see Updating your environment in the KnowlegeCenter for information on applying service.  

Alternatively, delete the vulnerable service instance and create a new instance.

Workarounds and Mitigations

None.

Monitor IBM Cloud Status for Future Security Bulletins

Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.

References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

The CVE-2018-1904 vulnerability was reported to IBM by noxxx of Chaitin Tech
The CVE-2018-1905 vulnerability was reported to IBM by Benoit Côté-Jodoin from GoSecure

Change History

05 March 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:
05 March 2019

UID

ibm10793597

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