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CVE-2022-31134

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Date: July 12, 2022

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.

Language: Python

Severity Score

Related Resources (5)

https://blog.zulip.com/2022/07/12/zulip-server-5-4-security-release
https://blog.zulip.com/2022/07/12/zulip-cloud-data-exports
https://github.com/zulip/zulip/security/advisories/GHSA-58pm-88xp-7x9m
https://nvd.nist.gov/vuln/detail/CVE-2022-31134
https://www.mend.io/vulnerability-database/CVE-2022-31134

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Unrestricted Upload of File with Dangerous Type

CWE-434

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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