Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-0896

Severity CVSS v4.0:
Pending analysis
Type:
CWE-285 Improper Authorization
Publication date:
02/06/2017
Last modified:
20/04/2025

Description

Zulip Server 1.5.1 and below suffer from an error in the implementation of the invite_by_admins_only setting in the Zulip group chat application server that allowed an authenticated user to invite other users to join a Zulip organization even if the organization was configured to prevent this.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x
6.50
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:L/Au:S/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.00 MEDIUM
Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
4.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:zulip:zulip_server:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.4:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.6:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.7:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.8:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.9:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.10:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.11:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.12:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.3.13:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:1.4.1:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools