CVE Vulnerability

CVE-2021-38305

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.

9.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/23andMe/Yamale/releases/tag/3.0.8 Release Notes Third Party Advisory
https://github.com/23andMe/Yamale/pull/165 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:23andme:yamale:*:*:*:*:*:*:*:*
Information

Published : 2021-08-09 09:15

Updated : 2021-08-17 06:46

NVD link : CVE-2021-38305

Mitre link : CVE-2021-38305

Products Affected
No products.
CWE
CWE-434