CVE-2021-23727: celeryproject celery Command Injection

Vulnerability summary

CVE-2021-23727 is a high (CVSS 7.5) Command Injection vulnerability in celeryproject celery. EPSS estimates a 3.88% chance of exploitation in the next 30 days, higher than 90.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 29-12-2021
   PublishedVulnerability first disclosed.
2. 16-09-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.