PT-2017-10682 · Zulip · Zulip Server

Rafid Aslam · Published 2017-03-28 · Updated 2019-10-09 · CVE-2017-0881

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Zulip server versions prior to 1.4.3

Description The issue is related to an error in the implementation of an autosubscribe feature in the check stream exists route, allowing an authenticated user to subscribe to a private stream without an invitation from an existing member.

Recommendations For versions prior to 1.4.3, update to version 1.4.3 or later to resolve the issue.

Fix

Information Disclosure

Incorrect Authorization

Weakness Enumeration

CWE-200

CWE-863

Related Identifiers

CVE-2017-0881

Affected Products

Zulip Server

References · 5

• https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-0881 · Security Note
• https://osv.dev/vulnerability/CVE-2017-0881 · Vendor Advisory
• https://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ · Patch
• http://securityfocus.com/bid/97159 · Vendor Advisory