CVE-2021-42257

2021-10-1100:00:00

mitre

www.cve.org

cve-2021-42257

check_smart

drive access

unprivileged user

device path

regular expression

AI Score

7.1

Confidence

High

EPSS

0.001

Percentile

41.1%

JSON

check_smart before 6.9.1 allows unintended drive access by an unprivileged user because it only checks for a substring match of a device path (the /dev/bus substring and a number), aka an unanchored regular expression.

References

www.openwall.com/lists/oss-security/2021/10/14/2

bugzilla.suse.com/show_bug.cgi?id=1183057

nvd.nist.gov/vuln/detail/CVE-2021-42257

www.claudiokuenzler.com/blog/1068/check_smart-6.9.1-security-fix-release-pseudo-device-path

www.claudiokuenzler.com/monitoring-plugins/check_smart.php