CVE-2022-25165

Published Apr 14, 2022 CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Description
An issue was discovered in Amazon AWS VPN Client 2.0.0. A TOCTOU race condition exists during the validation of VPN configuration files. This allows parameters outside of the AWS VPN Client allow list to be injected into the configuration file prior to the AWS VPN Client service (running as SYSTEM) processing the file. Dangerous arguments can be injected by a low-level user such as log, which allows an arbitrary destination to be specified for writing log files. This leads to an arbitrary file write as SYSTEM with partial control over the files content. This can be abused to cause an elevation of privilege or denial of service.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-29908 An issue was discovered in Amazon AWS VPN Client 2.0.0. A TOCTOU race condition exists during the validation of VPN configuration files. This allows parameters outside of the AWS VPN Client allow list to be injected into the configuration file prior to the AWS VPN Client service (running as SYSTEM) processing the file. Dangerous arguments can be injected by a low-level user such as log, which allows an arbitrary destination to be specified for writing log files. This leads to an arbitrary file write as SYSTEM with partial control over the files content. This can be abused to cause an elevation of privilege or denial of service.
History

No history.

Weaknesses
  • CWE-367

    Time-of-check Time-of-use (TOCTOU) Race Condition

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 3, 2024, 4:36 AM
Reserved
Feb 15, 2022, 12:00 AM
Status
Modified
Published
Apr 14, 2022, 4:15 PM
Modified
Jun 17, 2026, 4:33 AM