CVE-2017-0881

An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a private stream that should have required an invitation from an existing member to join. The issue affects all previously released versions of the Zulip server.

CVSS v3 4.3 MEDIUM
CVSS v2.0 4.0 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:N/A:N

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
http://www.securityfocus.com/bid/97159	Third Party Advisory Vendor Advisory
https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f	Patch Third Party Advisory
https://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ	Patch Release Notes Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-03-28 02:59

Updated : 2019-10-09 23:21

NVD link : CVE-2017-0881

Mitre link : CVE-2017-0881

CVE.ORG link : CVE-2017-0881

JSON object : View

Products Affected

zulip

zulip_server

CWE

CWE-863

Incorrect Authorization

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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