CVE-2021-42343

· CRITICALModified

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CVSS v3.1

9.8

EPSS

2.90%

Published

Oct 26, 2021

Modified

Nov 21, 2024

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

An issue was discovered in the Dask distributed package before 2021.10.0 for Python. Single machine Dask clusters started with dask.distributed.LocalCluster or dask.distributed.Client (which defaults to using LocalCluster) would mistakenly configure their respective Dask workers to listen on external interfaces (typically with a randomly selected high port) rather than only on localhost. A Dask cluster created using this method (when running on a machine that has an applicable port exposed) could be used by a sophisticated attacker to achieve remote code execution.

CVSS Vector

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

Affected Products (1)

anaconda · dask (up to 2021.10.0)vulnerable

References (6)

https://docs.dask.org/en/latest/changelog.html

Release NotesVendor Advisory

https://github.com/dask/dask/tags

Third Party Advisory

https://github.com/dask/distributed/security/advisories/GHSA-hwqr-f3v9-hwxr

Third Party Advisory

https://docs.dask.org/en/latest/changelog.html