CVE intelligence and bounded remediation
CVE-2021-22572 — On unix-like systems, the system temporary directory is shared between all users on that system
On unix-like systems, the system temporary directory is shared between all users on that system. The root cause is File.createTempFile creates files in the the system temporary directory with world readable permissions. Any sensitive information written to theses files is visible to all other local users on unix-like systems. We recommend upgrading past commit https://github.com/google/data-transfer-project/pull/969
- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Published
- 2022-03-29
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-377, CWE-668
Affected products
- google / data_transfer_project
Matched remediation archetype
Path traversal, unsafe upload, and file handling
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
- Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
- Review canonicalization and containment checks across supported operating systems and storage backends.
Remediate safely
- Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
- Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
- Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.
Authoritative sources
Complete CVE record and remediation plan
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