IBM Support

Security Bulletin: IBM Cloud Private for Data is affected by a user impersonation vulnerability in PySpark.

Created by Igets Administrator on
Published URL:
https://www.ibm.com/support/pages/node/884104
884104

Security Bulletin


Summary

When using Open Source Apache PySpark, it’s possible for a different local user to connect to the Spark application and impersonate the user running the Spark application. This affects versions 1.x, 2.0.x, 2.1.x, 2.2.0 to 2.2.2, and 2.3.0 to 2.3.1.

Vulnerability Details

CVE-ID: CVE-2018-11760
DESCRIPTION: Apache Spark could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw when using PySpark. By sending a specially-crafted request, an authenticated attacker could exploit this vulnerability to connect to the Spark application and impersonate the user running the Spark application.
CVSS Base Score: 7.8
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/156245 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

  • IBM Cloud Private for Data 1.1.x and Jupyter with Python 2.7, Spark 2.0.2
  • IBM Cloud Private for Data 1.1.x and Jupyter with Python 3.5, Spark 2.2.1
  • IBM Cloud Private for Data 1.2.x and Jupyter with Python 2.7, Spark 2.0.2
  • IBM Cloud Private for Data 1.2.x and Jupyter with Python 3.5, Spark 2.2.1

Remediation/Fixes

  • Users of IBM Cloud Private for Data V1.1.x are strongly encouraged to upgrade to IBM Cloud Private for Data V1.2.x or better.
    • IBM Cloud Private for Data 1.2.x includes Jupyter with Python 3.6, Spark 2.3.3 which is not affected
  • Users of IBM Cloud Private for Data V1.2.x and Jupyter with Python 2.7, Spark 2.0.2 should upgrade to Spark 2.2.3 or newer
  • Users of IBM Cloud Private for Data V1.2.x and Jupyter with Python 3.5, Spark 2.2.1 should upgrade to Spark 2.2.3 or newer
  • Affected users should avoid using PySpark in multi-user environments.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

17 May 2019: Original Version Published

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
03 October 2019

UID

ibm10884104

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