Files added to tar with Phar::buildFromIterator have all-access permissions
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 1.6%
exploitation probability
1.6%top 26% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products
PHP Group · PHPReferences
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.htmlhttps://bugs.php.net/bug.php?id=79082https://lists.debian.org/debian-lts-announce/2020/03/msg00034.htmlhttps://security.gentoo.org/glsa/202003-57https://usn.ubuntu.com/4330-1/https://www.debian.org/security/2020/dsa-4717https://www.debian.org/security/2020/dsa-4719https://www.tenable.com/security/tns-2021-14