Security Bulletin: IBM Cloud Private is vulnerable to Helm vulnerabilities (CVE-2020-15187, CVE-2020-15186, CVE-2020-15185, CVE-2020-15184)

Summary

IBM Cloud Private is vulnerable to Helm vulnerabilities

Vulnerability Details

CVEID:CVE-2020-15187
**DESCRIPTION:**Helm could allow a remote authenticated attacker to bypass security restrictions, caused by an issue with containing duplicates of the same entry in the plugin.yaml file. By sending a specially-crafted input, an attacker could exploit this vulnerability to modify a plugin’s install hooks to perform a local execution attack…
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188456 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2020-15186
**DESCRIPTION:**Helm could allow a remote attacker to bypass security restrictions, caused by improper input valuation by the plugin names. By sending a specially-crafted input, an attacker could exploit this vulnerability to duplicate the name of another plugin or spoofing the output to helm --help.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188455 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:CVE-2020-15185
**DESCRIPTION:**Helm could allow a remote authenticated attacker to bypass security restrictions, caused by an issue with allowing duplicates of the same chart entry in the repository index file. By sending a specially-crafted input, an attacker could exploit this vulnerability to inject a bad chart into a repository.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188454 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2020-15184
**DESCRIPTION:**Helm could allow a remote attacker to bypass security restrictions, caused by improper input valuation by the alias field on a Chart.yaml. By sending a specially-crafted input, an attacker could exploit this vulnerability to inject unwanted information into a chart.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188453 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)

Affected Products and Versions

Remediation/Fixes

Product defect fixes and security updates are only available for the two most recent Continuous Delivery (CD) update packages

• IBM Cloud Private 3.2.1
• IBM Cloud Private 3.2.2

For IBM Cloud Private 3.2.1, apply fix pack:

• IBM Cloud Private 3.2.1.2012

For IBM Cloud Private 3.2.2, apply fix pack:

• IBM Cloud Private 3.2.2.2012

For IBM Cloud Private 3.1.0, 3.1.1, 3.1.2, 3.2.0:

• Upgrade to the latest Continuous Delivery (CD) update package, IBM Cloud Private 3.2.2.
• If required, individual product fixes can be made available between CD update packages for resolution of problems. Contact IBM support for assistance

Workarounds and Mitigations

None