ESB-2019.0664 - [Linux] IBM Spectrum LSF: Execute arbitrary code/commands - Remote/unauthenticated 2019-03-04

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0664
         Security Bulletin: Public disclosed vulnerabilities from
                 Jackson-databind affects IBM Spectrum LSF
                               4 March 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Spectrum LSF
Publisher:         IBM
Operating System:  Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-7489 CVE-2018-5968 CVE-2017-17485
                   CVE-2017-15095 CVE-2017-7525 

Reference:         ASB-2018.0083
                   ASB-2018.0082
                   ESB-2019.0544
                   ESB-2019.0037
                   ESB-2018.3598

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10874268

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Security Bulletin: Public disclosed vulnerabilities from Jackson-databind
affects IBM Spectrum LSF

Document information

More support for: Platform LSF

Software version: All Versions

Operating system(s): Linux

Reference #: 0874268

Modified date: 01 March 2019

Summary

Public disclosed vulnerabilities from Jackson-databind affects IBM Spectrum
LSF: CVE-2017-7525, CVE-2017-15095, CVE-2017-17485, CVE-2018-5968,
CVE-2018-7489

Vulnerability Details

CVE-2017-7525
Jackson-databind (Also implemented in JBoss BPM Suite) is vulnerable to remote
code execution when deserializing via the `readValue()` method of
`ObjectMapper`.

CVE-2017-15095
An unauthenticated attacker can create a specially crafted payload that when
deserialized in `Jackson-databind` can lead to Code Execution.

CVE-2017-17485
Deserialization of untrusted user data in Jackson Databind could allow an
attacker to perform PHP Object Injection resulting in Remote Code Execution.
This issue exists because of an incomplete fix for CVE-2017-7525 which the
vendor tried to address through an incomplete blacklist.

CVE-2018-5968
FasterXML jackson-databind through 2.8.11 and 2.9.x through 2.9.3 allows
unauthenticated remote code execution because of an incomplete fix for the
CVE-2017-7525 and CVE-2017-17485 deserialization flaws. This is exploitable
via two different gadgets that bypass a blacklist.

CVE-2018-7489
FasterXML jackson-databind contains a remote code execution (*RCE*)
vulnerability due to an incomplete fix for the CVE-2017-7525 deserialization
flaw. An unauthenticated attacker can exploit this vulnerability via
`readValue` method to execute arbitrary code.

Affected Products and Versions

IBM Spectrum LSF 10.0.0.4
IBM Spectrum LSF 10.0.0.5
IBM Spectrum LSF 10.0.0.6
IBM Spectrum LSF 10.0.0.7
 

Remediation/Fixes

Product   VRMF   APAR Remediation / First Fix

LSF     10.1.0.4 None See fix below

LSF     10.1.0.5 None See fix below

LSF     10.1.0.6 None See fix below

LSF     10.1.0.7 None See fix below

Download Fix 512358 from the following location:
http://www.ibm.com/support/fixcentral/swg/selectFixesproduct=ibm/
Other+software/IBM+Spectrum+LSF&release=All&platform=All&function=fixId&fixids
=lsf-10.1-build512358&includeSupersedes=0

1) Go to the patch install directory: cd $LSF_ENVDIR/../10.1/install/

2) Copy the patch file to the install directory $LSF_ENVDIR/../10.1/install/

3) Run patchinstall: ./patchinstall <patch>

4) Run "badmin mbdrestart"

Workarounds and Mitigations



Change History

28 February 2019: Original version created

*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.

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