CVE-2022-31134 : Zulip is an open-source team collaboration tool. Zulip Server versions 2.1.0 abo

Zulip is an open-source team collaboration tool. Zulip Server versions 2.1.0 above have a user interface tool, accessible only to server owners and server administrators, which provides a way to download a "public data" export. While this export is only accessible to administrators, in many configurations server administrators are not expected to have access to private messages and private streams. However, the "public data" export which administrators could generate contained the attachment contents for all attachments, even those from private messages and streams. Zulip Server version 5.4 contains a patch for this issue.

Published 2022-07-12 21:15:10

Updated 2022-07-22 16:34:48

Source GitHub, Inc.

View at NVD, CVE.org

Vulnerability category: Information leak

Products affected by CVE-2022-31134

Zulip » Zulip Server
Versions from including (>=) 2.1.0 and before (<) 5.4
cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2022-31134

EPSS FAQ

0.23%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 46 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-31134

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:P/I:N/A:N	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
4.9	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N	1.2	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
4.9	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N	1.2	3.6	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2022-31134

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Assigned by: security-advisories@github.com (Secondary)
CWE-434 Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-31134

https://blog.zulip.com/2022/07/12/zulip-server-5-4-security-release

Zulip Server 5.4 security release
Release Notes;Vendor Advisory
https://blog.zulip.com/2022/07/12/zulip-cloud-data-exports

Data exported by Zulip Cloud organization administrators contained private files
Vendor Advisory
https://github.com/zulip/zulip/security/advisories/GHSA-58pm-88xp-7x9m

Public data export contains attachments that are non-public · Advisory · zulip/zulip · GitHub
Release Notes;Third Party Advisory

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Vulnerability Details : CVE-2022-31134

Products affected by CVE-2022-31134

Exploit prediction scoring system (EPSS) score for CVE-2022-31134

CVSS scores for CVE-2022-31134

CWE ids for CVE-2022-31134

References for CVE-2022-31134