CVE-2021-47688 Details
Description
In WhiteBeam 0.2.0 through 0.2.1 before 0.2.2, a user with local access to a server can bypass the allow-list functionality because a file can be truncated in the OpenFileDescriptor action before the VerifyCanWrite action is performed.
A vulnerability allowing users with local access to a server running WhiteBeam versions 0.2.0 through 0.2.1 to bypass the allow-list functionality has been identified. This is achieved by truncating a file in the OpenFileDescriptor action before the VerifyCanWrite action is executed. As a result, arbitrary files can be truncated with sufficient privileges on Linux, including WhiteBeam startup files.
Users can upgrade to WhiteBeam version 0.2.2, in which this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 23, 2025CISA-ADP
Assessed Jun 24, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/WhiteBeamSec/WhiteBeam/pull/22 | [email protected] | Issue TrackingVendor |
| https://github.com/WhiteBeamSec/WhiteBeam/security/advisories/GHSA-3f8r-9483-pfxj | [email protected] | AdvisoryRemedyVendor |
| https://github.com/WhiteBeamSec/WhiteBeam/security/policy | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-696 | Incorrect Behavior Order | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| WhiteBeam | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 23, 2025 | New CVE Received | [email protected] |