Auth bypass in Zulip Zulip_server
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…
Vulnerability class: Information Disclosure
EPSS: 0.002 (42.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Zulip Zulip_server
- N/a Zulip Server Versions 1.4.2 And Below — versions Zulip Server Versions 1.4.2 and below
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Third Party Advisory, vdb-entry, x_refsource_BID, Vendor Advisory)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC, Release Notes)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2017-0881?
- CVE-2017-0881 is a medium-severity vulnerability in Zulip Zulip_server, classified under Information Disclosure. CVSS score: 4.3/10. Published 2017-03-28.
- How severe is CVE-2017-0881?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2017-0881 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.