CVE-2020-36657

uptimed before 0.4.6-r1 on Gentoo allows local users (with access to the uptimed user account) to gain root privileges by creating a hard link within the /var/spool/uptimed directory, because there is an unsafe chown -R call.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugs.gentoo.org/630810	Exploit Patch Third Party Advisory
https://security.gentoo.org/glsa/202305-14
https://bugs.gentoo.org/630810	Exploit Patch Third Party Advisory
https://security.gentoo.org/glsa/202305-14

Configurations

Configuration 1 (hide)

cpe:2.3:a:uptimed_project:uptimed:*:*:*:*:*:gentoo:*:*

History

01 Apr 2025, 21:15

Type	Values Removed	Values Added
CWE		CWE-59

21 Nov 2024, 05:30

Type	Values Removed	Values Added
Summary		(es) uptimed anterior a 0.4.6-r1 en Gentoo permite a los usuarios locales (con acceso a la cuenta de usuario uptimed) obtener privilegios de root creando un enlace físico dentro del directorio /var/spool/uptimed, porque hay una llamada chown -R insegura.
References	~~() https://bugs.gentoo.org/630810 - Exploit, Patch, Third Party Advisory~~	() https://bugs.gentoo.org/630810 - Exploit, Patch, Third Party Advisory
References	~~() https://security.gentoo.org/glsa/202305-14 -~~	() https://security.gentoo.org/glsa/202305-14 -

03 May 2023, 12:15

Type	Values Removed	Values Added
References		(GENTOO) https://security.gentoo.org/glsa/202305-14 -

Information

Published : 2023-01-26 21:15

Updated : 2025-04-01 21:15

NVD link : CVE-2020-36657

Mitre link : CVE-2020-36657

CVE.ORG link : CVE-2020-36657

JSON object : View

Products Affected

uptimed_project

uptimed

CWE

NVD-CWE-noinfo CWE-59

Improper Link Resolution Before File Access ('Link Following')

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