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AUSCERT External Security Bulletin Redistribution
ESB-2019.2891
Information disclosure in WebSphere Application Server Admin
Console in IBM Cloud (CVE-2019-4269)
2 August 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server in IBM Cloud
Publisher: IBM
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-12735 CVE-2019-4269
Reference: ESB-2019.2081
ESB-2018.0660.10
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=ibm10960159
http://www.ibm.com/support/docview.wss?uid=ibm10888425
Comment: This bulletin contains two (2) IBM security advisories.
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Information disclosure in WebSphere Application Server Admin Console in IBM
Cloud (CVE-2019-4269)
Product: WebSphere Application Server in IBM Cloud
Component: --
Software version: Version Independent
Operating system(s): Platform Independent
Reference #: 0960159
Security Bulletin
Summary
There is an information disclosure in the Admin Console of WebSphere
Application Server.
Vulnerability Details
CVEID: CVE-2019-4269
DESCRIPTION: IBM WebSphere Application Server Admin Console could allow a
remote attacker to obtain sensitive information when a specially crafted url
causes a stack trace to be dumped.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
160202 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
This vulnerability affect the following versions and releases of WebSphere
Application Server and bundling products.
o Version 9.0
Remediation/Fixes
To patch an existing service instance, refer to the IBM WebSphere Application
Server bulletin listed below
o Information disclosure in WebSphere Application Server Admin Console
(CVE-2019-4269)
Please see Updating your environment in the KnowlegeCenter for information on
applying service.
Alternatively, delete the vulnerable service instance and create a new
instance.
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.
Change History
31 July 2019 - Original document published
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Remote Execution Vulnerability Affects Red Hat Linux Used By IBM WebSphere
Application Server in IBM Cloud (CVE-2019-12735)
Product: WebSphere Application Server in IBM Cloud
Software version: All Versions
Operating system(s): Linux
Reference #: 0888425
Security Bulletin
Summary
There is a security vulnerability that affects Red Hat Linux used by IBM
WebSphere Application Server in the IBM Cloud.
Vim before 8.1.1365 and Neovim before 0.3.6 allows remote attackers to execute
arbitrary OS commands via the :source! command in a modeline, as demonstrated
by execute in Vim, and assert_fails or nvim_input in Neovim.
Vulnerability Details
It was found that the `:source!` command was not restricted by the sandbox
mode. If modeline was explicitly enabled, opening a specially crafted text file
in vim could result in arbitrary command execution.
Find out more about CVE-2019-12735 from the MITRE CVE dictionary dictionary and
NIST NVD .
Relevant CVE Information:
CVEID: CVE-2019-12735
DESCRIPTION: Vim and and Neovim could allow a remote attacker to execute
arbitrary commands on the system, caused by improper input validation by the
:source! command in a modeline. By sending a specially-crafted request, an
attacker could exploit this vulnerability to execute arbitrary commands on the
system.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
162255 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
These vulnerabilities affect the following versions and releases of IBM
WebSphere Application Server in IBM Cloud:
o Liberty
o Version 9.0
o Version 8.5
Remediation/Fixes
To mitigate the vulnerability on an existing service instance issue the
following command as root:
o echo "set nomodeline" >> /etc/vimrc
Alternatively, delete the vulnerable service instance and create a new
instance.
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.
Change History
31 July 2019 - Original document published
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