Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTQzNXAtZjgyeC1teHdt

Command injection in Yamale

23andMe Yamale before 3.0.8 allows remote attackers to execute arbitrary code via a crafted schema file. The schema parser uses eval as part of its processing, and tries to protect from malicious expressions by limiting the builtins that are passed to the eval. When processing the schema, each line is run through Python's eval function to make the validator available. A well-constructed string within the schema rules can execute system commands; thus, by exploiting the vulnerability, an attacker can run arbitrary code on the image that invokes Yamale.

Permalink: https://github.com/advisories/GHSA-435p-f82x-mxwm
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTQzNXAtZjgyeC1teHdt
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

CVSS Score: 7.8
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Identifiers: GHSA-435p-f82x-mxwm, CVE-2021-38305
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-38305
• https://github.com/23andMe/Yamale/pull/165
• https://github.com/23andMe/Yamale/releases/tag/3.0.8
• https://github.com/advisories/GHSA-435p-f82x-mxwm

Repository: https://github.com/23andMe/Yamale
Blast Radius: 19.0

Affected Packages