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.

CVSS v3 7.1 HIGH
CVSS v2.0 3.6 LOW

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

3.6^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:P/A:P

Exploitability : 3.9 / Impact : 4.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2021/10/14/2	Exploit Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1183057	Exploit Issue Tracking Patch Third Party Advisory
https://nvd.nist.gov/vuln/detail/CVE-2021-42257
https://www.claudiokuenzler.com/blog/1068/check_smart-6.9.1-security-fix-release-pseudo-device-path	Third Party Advisory
https://www.claudiokuenzler.com/monitoring-plugins/check_smart.php	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:check_smart_project:check_smart:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-10-11 20:15

Updated : 2023-11-14 00:15

NVD link : CVE-2021-42257

Mitre link : CVE-2021-42257

CVE.ORG link : CVE-2021-42257

JSON object : View

Products Affected

check_smart_project

check_smart

CWE

CWE-20

Improper Input Validation

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