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MitreCVE-2021-23240

HistoryJan 12, 2021 - 9:15 a.m.

CVE-2021-23240

2021-01-1209:15:14

CWE-59

mitre

web.nvd.nist.gov

238

cve-2021-23240

sudo vulnerability

selinux

file ownership

privilege escalation

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.001

Percentile

40.7%

JSON

selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.

Affected configurations

Nvd

Node

sudo_projectsudoRange<1.8.32

sudo_projectsudoRange1.9.0–1.9.5

Node

netapphci_management_nodeMatch-

netappsolidfireMatch-

Node

fedoraprojectfedoraMatch32

fedoraprojectfedoraMatch33

VendorProductVersionCPE
sudo_projectsudo*cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*
netapphci_management_node-cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
netappsolidfire-cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
fedoraprojectfedora32cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
sudo_project	sudo	*	cpe:2.3:a:sudo_project:sudo::::::::
netapp	hci_management_node	-	cpe:2.3:a:netapp:hci_management_node:-:::::::*
netapp	solidfire	-	cpe:2.3:a:netapp:solidfire:-:::::::*
fedoraproject	fedora	32	cpe:2.3:o:fedoraproject:fedora:32:::::::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*