Privilege Escalation Vulnerability in Collabora Online's loolforkit
CVE-2021-25630

7.8HIGH

Key Information:

Vendor

Collabora Productivity

Status
Collabora Online
Libreoffice Online
Vendor
CVE Published:
23 February 2021

What is CVE-2021-25630?

The 'loolforkit' component of Collabora Online has a flaw that allows non-privileged users to execute the program with elevated privileges. This occurs because the initial check intended to verify the user invoking the program is improperly implemented, failing to restrict unauthorized access. As a result, a normal user could potentially gain local root privileges, leading to serious security implications and unauthorized access to sensitive system components.

Affected Version(s)

Collabora Online Collabora Online 4.2 < 4.2.13

Collabora Online Collabora Online 6.4 < 6.4.3

LibreOffice Online <= 7.0.1.1

References

https://github.com/CollaboraOnline/online/security/adviso...
x_refsource_MISC
https://www.openwall.com/lists/oss-security/2021/01/18/3
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks to Matthias Gerstner (SUSE) for raising the issue.
.