CVE-2019-18822 Information

Description

A privilege escalation vulnerability in ZOOM Call Recording 6.3.1 allows its user account (i.e. the account under which the program runs - by default the callrec account) to elevate privileges to root by abusing the callrec-rs@.service. The callrec-rs@.service starts the /opt/callrec/bin/rs binary with root privileges and this binary is owned by callrec. It can be replaced by a Trojan horse.

CVSS Vector

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

Reference

https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-18822-PrivEscal-ZoomCallRecording https://www.zoomint.com/solutions/call-recording

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8