CVE-2020-7063
MEDIUM severity · CVSS 5.5 · CWE-281
5.5CVSS MEDIUM
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)2%
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://www.tenable.com/security/tns-2021-14 ↗
Additional information
- NVD record
- https://www.tenable.com/security/tns-2021-14Patch
- https://bugs.php.net/bug.php?id=79082Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00034.htmlAdvisory
- https://security.gentoo.org/glsa/202003-57Advisory
- https://usn.ubuntu.com/4330-1/Advisory
- https://www.debian.org/security/2020/dsa-4717Advisory
- https://www.debian.org/security/2020/dsa-4719Advisory