CVE-2020-7063
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PHP Group | PHP | 7.3.x < 7.3.15 | affected |
| PHP Group | PHP | 7.4.x < 7.4.3 | affected |
| PHP Group | PHP | 7.2.x < 7.2.28 | affected |
Weaknesses
- CWE-281: CWE-281 Improper Preservation of Permissions
Workarounds
Use different Phar class functions to compose the archive, such as addFile(), or reset file permissions upon extracting files from the archive.
ADP Enrichment
CVE Program Container
Additional References
- https://bugs.php.net/bug.php?id=79082
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
- https://security.gentoo.org/glsa/202003-57
- https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html
- https://usn.ubuntu.com/4330-1/
- https://www.debian.org/security/2020/dsa-4717
- https://www.debian.org/security/2020/dsa-4719
- https://www.tenable.com/security/tns-2021-14
References
- https://bugs.php.net/bug.php?id=79082
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html
- https://security.gentoo.org/glsa/202003-57
- https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html
- https://usn.ubuntu.com/4330-1/
- https://www.debian.org/security/2020/dsa-4717
- https://www.debian.org/security/2020/dsa-4719
- https://www.tenable.com/security/tns-2021-14
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