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AUSCERT External Security Bulletin Redistribution
ESB-2020.3704
Security Bulletin: WebSphere Application Server Admin Console is vulnerable
to a directory traversal vulnerability (CVE-2020-4782)
28 October 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: WebSphere Application Server Admin Console
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Solaris
Windows
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-4782 CVE-2018-1770
Reference: ESB-2019.2355
ESB-2019.1030
ESB-2019.0371
Original Bulletin:
https://www.ibm.com/support/pages/node/6356083
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: WebSphere Application Server Admin Console is vulnerable to
a directory traversal vulnerability (CVE-2020-4782)
Summary
WebSphere Application Server Admin Console is vulnerable to a directory
traversal vulnerability. This has been addressed.
Vulnerability Details
CVEID: CVE-2020-4782
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker
to traverse directories on the system. An attacker could send a
specially-crafted URL request containing "dot dot" sequences (/../) to view
arbitrary files on the system. This vulnerability is due to an incomplete fix
for CVE-2018-1770.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
189213 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
+----------------------------+----------+
|Affected Product(s) |Version(s)|
+----------------------------+----------+
|WebSphere Application Server|9.0 |
+----------------------------+----------+
|WebSphere Application Server|8.5 |
+----------------------------+----------+
|WebSphere Application Server|8.0 |
+----------------------------+----------+
|WebSphere Application Server|7.0 |
+----------------------------+----------+
Remediation/Fixes
For WebSphere Application Server traditional and WebSphere Application Server
Hypervisor Edition:
For V9.0.0.0 through 9.0.5.5:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH29871
- --OR--
. Apply Fix Pack 9.0.5.6 or later (targeted availability 4Q2020).
For V8.5.0.0 through 8.5.5.18:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH29871
- --OR--
. Apply Fix Pack 8.5.5.19 or later (targeted availability 1Q2021).
For V8.0.0.0 through 8.0.0.15:
. Upgrade to 8.0.0.15 and then apply Interim Fix PH29871
For V7.0.0.0 through 7.0.0.45:
. Upgrade to 7.0.0.45 and then apply Interim Fix PH29871
Additional interim fixes may be available and linked off the interim fix
download page.
WebSphere Application Server V7.0 and V8.0 are no longer in full support; IBM
recommends upgrading to a fixed, supported version/release/platform of the
product.
Workarounds and Mitigations
None
Change History
27 Oct 2020: Initial Publication
*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 Location
Worldwide
Document Information
More support for:
WebSphere Application Server
Software version:
7.0,8.0,8.5,9.0
Operating system(s):
AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Document number:
6356083
Modified date:
27 October 2020
UID
ibm16356083
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receiving these bulletins you should contact your local IT manager. If
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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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