CVE-2021-23727: Stored Command Injection
First published: Wed Dec 29 2021(Updated: )
This affects the package celery before 5.2.2. It by default trusts the messages and metadata stored in backends (result stores). When reading task metadata from the backend, the data is deserialized. Given that an attacker can gain access to, or somehow manipulate the metadata within a celery backend, they could trigger a stored command injection vulnerability and potentially gain further access to the system.
Credit: report@snyk.io report@snyk.io
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/celery | <5.2.2 | 5.2.2 |
| Celeryproject Celery | <5.2.2 | |
| Fedoraproject Extra Packages For Enterprise Linux | =7.0 | |
| Fedoraproject Fedora | =35 | |
| <5.2.2 | ||
| =7.0 | ||
| =35 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-23727
- https://github.com/celery/celery/blob/master/Changelog.rst%23522
- https://snyk.io/vuln/SNYK-PYTHON-CELERY-2314953
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYXRGHWHD2WWMHBWCVD5ULVINPKNY3P5/
- https://github.com/celery/celery/commit/1f7ad7e6df1e02039b6ab9eec617d283598cad6b
- https://github.com/advisories/GHSA-q4xr-rc97-m4xx (Advisory)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYXRGHWHD2WWMHBWCVD5ULVINPKNY3P5/
- https://github.com/pypa/advisory-database/tree/main/vulns/celery/PYSEC-2021-858.yaml
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYXRGHWHD2WWMHBWCVD5ULVINPKNY3P5
Frequently Asked Questions
What is CVE-2021-23727?
CVE-2021-23727 is a vulnerability that affects the Celery package before version 5.2.2.
How does CVE-2021-23727 impact the Celery package?
CVE-2021-23727 allows an attacker to manipulate and gain unauthorized access to task metadata stored in Celery backends.
What is the severity of CVE-2021-23727?
CVE-2021-23727 has a severity score of 7.5, which is considered high.
How can I fix CVE-2021-23727?
To fix CVE-2021-23727, update the Celery package to version 5.2.2 or higher.
Where can I find more information about CVE-2021-23727?
You can find more information about CVE-2021-23727 on the NVD (National Vulnerability Database) website, GitHub, and Snyk.
- collector/nvd-index
- agent/weakness
- agent/author
- agent/type
- agent/severity
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- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-q4xr-rc97-m4xx
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- canonical/fedoraproject fedora
- version/fedoraproject fedora/35
- package-manager/pip