Improper input validation in Check Smart Project
CVE-2021-42257
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.claudiokuenzler.com/monitoring-plugins/check_smart.php (Third Party Advisory)
- www.claudiokuenzler.com/blog/1068/check_smart-6.9.1-security-fix-release-pseudo… (Third Party Advisory)
- bugzilla.suse.com/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2021/10/14/2 (mailing-list, Exploit, Third Party Advisory)
- nvd.nist.gov/vuln/detail/CVE-2021-42257
Frequently asked questions
- What is CVE-2021-42257?
- CVE-2021-42257 is a high-severity vulnerability in Check Smart Project, classified under Improper Input Validation. CVSS score: 7.1/10. Published 2021-10-11.
- How severe is CVE-2021-42257?
- High severity. CVSS v3 base score is 7.1 out of 10.