CVE-2021-42343GHSA-HWQR-F3V9-HWXRGHSA-J8FQ-86C5-5V2RPYSEC-2021-387PYSEC-2021-871PYSEC-2021-872
An issue was discovered in the Dask distributed package before 2021.10.0 for Python.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2021.10.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- n/a n/a
Version range not reported
- distributedPyPI
fixed in 2021.10.0
- daskPyPI
fixed in 2021.10.0