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HistoryFeb 14, 2023 - 9:14 p.m.

Security Bulletin: IBM CICS TX Standard is vulnerable to multiple vulnerabilities in Kubernetes.

2023-02-1421:14:53
www.ibm.com
25

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.008 Low

EPSS

Percentile

81.6%

Summary

IBM CICS TX Standard is vulnerable to multiple vulnerabilities in Kubernetes. The fix removes these vulnerabilities from IBM CICS TX Standard.

Vulnerability Details

CVEID:CVE-2019-11250
**DESCRIPTION:**Kubernetes could allow a remote attacker to obtain sensitive information, caused by storing credentials in the log by the client-go library. By sending a specially-crafted command, a remote attacker could exploit this vulnerability to obtain sensitive information and use this information to launch further attacks against the affected system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166710 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2019-11247
**DESCRIPTION:**Kubernetes could allow a remote authenticated attacker to gain unauthorized access to the system, caused by an error in the API server. By sending a specially crafted request using the wrong scope, an attacker could exploit this vulnerability to create, view, update or delete the cluster-scoped resource.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/164767 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2020-10752
**DESCRIPTION:**OpenShift API Server could allow a remote attacker to obtain sensitive information, caused by the leaking of OAuthTokens to log files when API Server panic occurred. By gaining access to the log files, an attacker could exploit this vulnerability to obtain OAuthTokens information, and use this information to launch further attacks against the affected system.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/184792 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N)

CVEID:CVE-2020-8565
**DESCRIPTION:**Kubernetes could allow a local authenticated attacker to obtain sensitive information, caused by a flaw when kube-apiserver is using logLevel >= 9. By gaining access to the log files, an attacker could exploit this vulnerability to obtain the Kubernetes authorization tokens information, and use this information to launch further attacks against the affected system.
CVSS Base score: 4.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/189925 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2020-27813
**DESCRIPTION:**Gorilla WebSocket is vulnerable to a denial of service, caused by an integer overflow with the length of websocket frames received. By sending a specially-crafted websocket connection request, a remote attacker could exploit this vulnerability to cause a denial of service condition on the HTTP Server.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/192563 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-2021-3121
**DESCRIPTION:**An unspecified error with the lack of certain index validation, aka the skippy peanut butter issue in GoGo Protobuf has an unknown impact and attack vector.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/194539 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2021-25735
**DESCRIPTION:**Kubernetes kube-apiserver could allow a remote authenticated attacker to bypass security restrictions, caused by a flaw when performing note updates. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass a Validating Admission Webhook.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/199931 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H)

CVEID:CVE-2020-26160
**DESCRIPTION:**jwt-go could allow a remote attacker to bypass security restrictions, caused by a type assertion failure when m[“aud”] happens to be []string{}. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass access restrictions.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/189408 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

Affected Product(s) Version(s)
IBM CICS TX Standard 11.1

Remediation/Fixes

IBM strongly recommends addressing the vulnerabilities by downloading and applying the interim fix from the table below.

Product

|

Version

|

Defect

|

Remediation / First Fix

—|—|—|—

IBM CICS TX Standard

|

11.1

|

127799

|

Download the fix from here

Workarounds and Mitigations

None

CPENameOperatorVersion
cics txeq11.1

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.008 Low

EPSS

Percentile

81.6%

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