National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-0896 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.8


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

CVSS v2.0 Severity and Metrics:

Base Score: 4.0 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/zulip/zulip/commit/1f48fa27672170bba3b9a97384905bb04c18761b Issue Tracking Patch
https://groups.google.com/forum/#!msg/zulip-announce/sUYeJv-fFmg/2TU2TLmNAwAJ
https://hackerone.com/reports/224210 Permissions Required

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:zulip:zulip_server:1.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.12:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.3.13:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.4.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.4.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.4.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.5.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:zulip:zulip_server:1.5.1:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-0896
NVD Published Date:
06/02/2017
NVD Last Modified:
08/13/2018