Lucene search

K
gentooGentoo FoundationGLSA-202105-37
HistoryMay 26, 2021 - 12:00 a.m.

Nextcloud Desktop Client: User-assisted execution of arbitrary code

2021-05-2600:00:00
Gentoo Foundation
security.gentoo.org
38

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.013 Low

EPSS

Percentile

85.3%

Background

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer.

Description

It was discovered that Nextcloud Desktop Client did not validate URLs.

Impact

A remote attacker could entice a user to connect to a malicious Nextcloud server to cause the execution of arbitrary commands with the privileges of the user running the Nextcloud Desktop Client application.

Workaround

There is no known workaround at this time.

Resolution

All Nextcloud Desktop Client users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-misc/nextcloud-client-3.1.3"
OSVersionArchitecturePackageVersionFilename
Gentooanyallnet-misc/nextcloud-client<Β 3.1.3UNKNOWN

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.013 Low

EPSS

Percentile

85.3%