CVE-2020-7063 - CVE House
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Status published Medium CVE-2020-7063

Files added to tar with Phar::buildFromIterator have all-access permissions

Vulnerability Description

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when creating PHAR archive using PharData::buildFromIterator() function, the files are added with default permissions (0666, or all access) even if the original files on the filesystem were with more restrictive permissions. This may result in files having more lax permissions than intended when such archive is extracted.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Reported by dr at loopia dot rs

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Affected Vendor

Affected Software

PHP
Vulnerable Versions:
7.3.x, 7.4.x, 7.2.x

Timeline

Official Publish: February 27th, 2020
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weaknesses (CWE)

CWE-281

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.