Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1tcXYtbTQ1aC1xMmhw

Sandbox Breakout / Arbitrary Code Execution in localeval

All versions of localeval are vulnerable to Sandbox Escape leading to Remote Code Execution. The package fails to restrict access to the main context through constructor.constructor. This may allow attackers to execute arbitrary code in the system. Evaluating the payload

constructor.constructor("return process.env")()

returns the contents of process.env.

Recommendation

No fix is currently available. Consider using an alternative package until a fix is made available.

Permalink: https://github.com/advisories/GHSA-mmqv-m45h-q2hp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1tcXYtbTQ1aC1xMmhw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 3 years ago
Updated: over 1 year ago

Identifiers: GHSA-mmqv-m45h-q2hp
References:

• https://github.com/espadrine/localeval/issues/9
• https://github.com/espadrine/localeval/commit/823f112c793b8fae051eeddad61d4ed29804a56c
• https://github.com/espadrine/localeval/commit/ce985eba77a5f89a7f718727cbaa7fb14da40335
• https://github.com/advisories/GHSA-mmqv-m45h-q2hp

Repository: https://github.com/espadrine/localeval
Blast Radius: 0.0

Affected Packages