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HistoryDec 31, 2021 - 2:47 a.m.

Security Bulletin: Multiple vulnerabilities in Apache Log4j impact IBM Spectrum Scale (CVE-2021-45105, CVE-2021-45046)

2021-12-3102:47:29
www.ibm.com
12

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.975 High

EPSS

Percentile

100.0%

Summary

Multiple vulnerabilities in Apache Log4j could allow an attacker to execute arbitrary code and denial of service on the system because the library is used by the Graphical User Interface (GUI) of IBM Spectrum Scale.

Vulnerability Details

CVEID:CVE-2021-45105
**DESCRIPTION:**Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process. Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-45046
**DESCRIPTION:**Apache Log4j could result in remote code execution, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. When the logging configuration uses a non-default Pattern Layout with a Context Lookup, an attacker with control over Thread Context Map (MDC) input data can craft malicious input data using a JNDI Lookup pattern to leak sensitive information and remote code execution in some environments and local code execution in all environments.
CVSS Base score: 9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Spectrum Scale 5.0.5.0 - 5.0.5.11
IBM Spectrum Scale 5.1.0.0 - 5.1.2.1
IBM Spectrum Scale on AWS Marketplace Spectrum Scale 5.0.5.3 BYOL v1.3.1
IBM Spectrum Scale container native storage access (CNSA)

5.1.0.1 - 5.1.2.1

Remediation/Fixes

IBM strongly recommends addressing the vulnerability by installing the Spectrum Scale version specific efix:

Note : If the following line “LOG4J_FORMAT_MSG_NO_LOOKUPS=true” was added to /etc/sysconfig/gpfsgui to mitigate the log4j issue, then remove the line.

1.) For IBM Spectrum Scale:

  • For IBM Spectrum Scale V5.0.5.0 - V5.0.5.11 and Spectrum Scale V5.0.5.3 BYOL V1.3.1, contact IBM Support or call, reference **APAR IJ36851 **
  • For IBM Spectrum Scale V5.1.0 - V5.1.2.1 and for Spectrum Scale V5.0.5.3 BYOL V1.3.1 (if IBM Spectrum Scale version was upgraded to V5.1.0 and above) **,**contact IBM Support or call, reference APAR IJ36818

OR download efix:

  1. For **IBM Spectrum Scale container native storage access environments: **

To resolve the CVEs, apply the updated container native operator manifest file to pull and apply the new GUI container images built with Apache Log4j V2.17.

For CNSA V5.1.0.1 and V5.1.0.3

Upgrade to a newer release of IBM Spectrum Scale container native storage access.

For CNSA V5.1.1.1** **

Operator, GUI container images, and the generated operator manifest files have been updated.

Apply the updated operator.yaml:

_oc apply -f _https://raw.githubusercontent.com/IBM/ibm-spectrum-scale-container-native/v5.1.1.1/generated/installer/ibm-spectrum-scale-operator.yaml

For****CNSA v5.1.1.3, v5.1.1.4, v5.1.2.1

GUI container image and the generated operator manifest files have been updated.

a.) Apply the generated operator manifest file to get the new digests for GUI

- v5.1.1.3: _oc apply -f _https://raw.githubusercontent.com/IBM/ibm-spectrum-scale-container-native/v5.1.1.3/generated/installer/ibm-spectrum-scale-operator.yaml

- v5.1.1.4: _oc apply -f _https://raw.githubusercontent.com/IBM/ibm-spectrum-scale-container-native/v5.1.1.4/generated/installer/ibm-spectrum-scale-operator.yaml

- v5.1.2.1: _oc apply -f _https://raw.githubusercontent.com/IBM/ibm-spectrum-scale-container-native/v5.1.2.1/generated/installer/ibm-spectrum-scale-operator.yaml

b.) Restart the operator pod:

oc delete pod $(oc get pods -lapp.kubernetes.io/name=operator -n ibm-spectrum-scale-operator -o json | jq -r ‘.items[0].metadata.name’) -n ibm-spectrum-scale-operator

Workarounds and Mitigations

None

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.975 High

EPSS

Percentile

100.0%

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