← Zuruck zu CVEs

CVE-2018-18556

CRITICAL

9.9

Beschreibung

A privilege escalation issue was discovered in VyOS 1.1.8. The default configuration also allows operator users to execute the pppd binary with elevated (sudo) permissions. Certain input parameters are not properly validated. A malicious operator user can run the binary with elevated permissions and leverage its improper input validation condition to spawn an attacker-controlled shell with root privileges.

CVE Details

CVSS v3.1 Bewertung9.9

SchweregradCRITICAL

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht12/17/2018

Zuletzt geandert11/21/2024

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

vyos:vyos

Referenzen

http://packetstormsecurity.com/files/159234/VyOS-restricted-shell-Escape-Privilege-Escalation.html(cve@mitre.org)

https://blog.mirch.io/2018/11/05/cve-2018-18556-vyos-privilege-escalation-via-sudo-pppd-for-operator-users/(cve@mitre.org)

https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases(cve@mitre.org)

http://packetstormsecurity.com/files/159234/VyOS-restricted-shell-Escape-Privilege-Escalation.html(af854a3a-2127-422b-91ae-364da2661108)

https://blog.mirch.io/2018/11/05/cve-2018-18556-vyos-privilege-escalation-via-sudo-pppd-for-operator-users/(af854a3a-2127-422b-91ae-364da2661108)

https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases(af854a3a-2127-422b-91ae-364da2661108)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.