CVE-2022-21687: github gh-ost Improper Input Validation

Vulnerability summary

CVE-2022-21687 is a medium (CVSS 6.8) Improper Input Validation vulnerability in github gh-ost. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.3% of scored vulnerabilities.

Timeline

1. 01-02-2022
   PublishedVulnerability first disclosed.
2. 05-05-2025
   Last modifiedVulnerability information updated.

Description

gh-ost is a triggerless online schema migration solution for MySQL. Versions prior to 1.1.3 are subject to an arbitrary file read vulnerability. The attacker must have access to the target host or trick an administrator into executing a malicious gh-ost command on a host running gh-ost, plus network access from host running gh-ost to the attack's malicious MySQL server. The `-database` parameter does not properly sanitize user input which can lead to arbitrary file reads.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.