Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Check Smart Project | Check Smart | < 6.9.1 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/10/14/2ExploitThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1183057ExploitIssue TrackingPatch
- https://nvd.nist.gov/vuln/detail/CVE-2021-42257
- https://www.claudiokuenzler.com/blog/1068/check_smart-6.9.1-security-fix-releaseThird Party Advisory
- https://www.claudiokuenzler.com/monitoring-plugins/check_smart.phpThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/10/14/2ExploitThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1183057ExploitIssue TrackingPatch
- https://nvd.nist.gov/vuln/detail/CVE-2021-42257
- https://www.claudiokuenzler.com/blog/1068/check_smart-6.9.1-security-fix-releaseThird Party Advisory
- https://www.claudiokuenzler.com/monitoring-plugins/check_smart.phpThird Party Advisory
FAQ
What is CVE-2021-42257?
CVE-2021-42257 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 r...
How severe is CVE-2021-42257?
CVE-2021-42257 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-42257?
Check the references section above for vendor advisories and patch information. Affected products include: Check Smart Project Check Smart.