CVE-2021-42257

Published on: 10/11/2021 12:00:00 AM UTC

Last Modified on: 10/19/2021 01:58:00 AM UTC

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Certain versions of Check Smart from Check Smart Project contain the following vulnerability:

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.

  • CVE-2021-42257 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.

CVSS3 Score: 7.1 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
LOCAL LOW LOW NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE HIGH HIGH

CVSS2 Score: 3.6 - LOW

Access
Vector
Access
Complexity
Authentication
LOCAL LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE PARTIAL PARTIAL

CVE References

Description Tags Link
oss-security - CVE-2021-42257: check_smart.pl: unprivileged user can alter hard drive settings www.openwall.com
text/html
URL Logo MLIST [oss-security] 20211014 CVE-2021-42257: check_smart.pl: unprivileged user can alter hard drive settings
ck :: monitoring nagios plugin check_smart SMART Hard Drive Solid State Drive NVMe Check www.claudiokuenzler.com
text/html
URL Logo MISC www.claudiokuenzler.com/monitoring-plugins/check_smart.php
Bug 1183057 – VUL-0: monitoring-plugins-smart: unprivileged user can modify SMART settings due to insufficient input validation in check_smart.pl bugzilla.suse.com
text/html
URL Logo MISC bugzilla.suse.com/show_bug.cgi?id=1183057
ck :: Monitoring plugin check_smart 6.9.1 released: Security fix in pseudo-device path www.claudiokuenzler.com
text/html
URL Logo MISC www.claudiokuenzler.com/blog/1068/check_smart-6.9.1-security-fix-release-pseudo-device-path

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationCheck Smart ProjectCheck SmartAllAllAllAll
  • cpe:2.3:a:check_smart_project:check_smart:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-42257 : check_smart before 6.9.1 allows unintended drive access by an unprivileged user because it only ch… twitter.com/i/web/status/1… 2021-10-11 20:06:57
Twitter Icon @Robo_Alerts Potentially Critical CVE Detected! CVE-2021-42257 Description: CVE-2021-42257 check_smart before 6.9.1 allows unint… twitter.com/i/web/status/1… 2021-10-11 21:00:03
Twitter Icon @LinInfoSec Php - CVE-2021-42257: claudiokuenzler.com/monitoring-plu… 2021-10-11 23:15:21
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