PT-2019-15724 · Zulip · Zulip Server

Published 2019-11-21 · Updated 2020-08-24 · CVE-2019-18933

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Zulip Server versions 1.7.0 through 2.0.6

Description A bug in the new user signup process in Zulip Server allows an unprivileged attacker to steal a user's personal API key if the user registered their account using social authentication in an organization that also allows password authentication. This could give the attacker nearly full access to the user's account.

Recommendations For Zulip Server versions 1.7.0 through 2.0.6, update to version 2.0.7 or later to resolve the issue.

Fix

Related Identifiers

CVE-2019-18933

Affected Products

Zulip Server

References · 4

• https://github.com/zulip/zulip/commit/0c2cc41d2e40807baa5ee2c72987ebfb64ea2eb6 · Patch
• https://blog.zulip.org/2019/11/21/zulip-2-0-7-security-release · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-18933 · Security Note
• https://osv.dev/vulnerability/CVE-2019-18933 · Vendor Advisory