What is CVE-2023-3577?

CVE-2023-3577 is a vulnerability in Mattermost that allows an attacker to perform a limited blind SSRF by exploiting the failure to properly restrict requests to localhost/intranet during the interactive dialog.

What is the severity of CVE-2023-3577?

CVE-2023-3577 has a severity of 4.3, which is considered medium.

How does CVE-2023-3577 affect Mattermost?

CVE-2023-3577 affects Mattermost versions between 7.8.0 and 7.8.7, as well as versions between 7.10.0 and 7.10.3 of Mattermost Server.

How can an attacker exploit CVE-2023-3577?

An attacker can exploit CVE-2023-3577 by sending unauthorized requests to localhost/intranet during the interactive dialog in Mattermost.

How can I fix CVE-2023-3577?

To fix CVE-2023-3577, it is recommended to upgrade Mattermost Server to a version beyond 7.10.3 or 7.8.7, depending on your current version.

Vulnerability/
CVE-2023-3577

medium

4.3

CWE

918

17/7/2023

2/8/2024

CVE-2023-3577: Limited blind SSRF to localhost/intranet in interactive dialog implementation

First published: Mon Jul 17 2023(Updated: )

Mattermost fails to properly restrict requests to localhost/intranet during the interactive dialog, which could allow an attacker to perform a limited blind SSRF.

Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com

Affected Software	Affected Version	How to fix
Mattermost Mattermost Server	>=7.8.0<7.8.7
Mattermost Mattermost Server	>=7.10.0<7.10.3

Remedy

Update Mattermost Server to versions v7.8.7, v7.10.3 or higher.

Never miss a vulnerability like this again

Reference Links

https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2023-3577?
CVE-2023-3577 is a vulnerability in Mattermost that allows an attacker to perform a limited blind SSRF by exploiting the failure to properly restrict requests to localhost/intranet during the interactive dialog.
What is the severity of CVE-2023-3577?
CVE-2023-3577 has a severity of 4.3, which is considered medium.
How does CVE-2023-3577 affect Mattermost?
CVE-2023-3577 affects Mattermost versions between 7.8.0 and 7.8.7, as well as versions between 7.10.0 and 7.10.3 of Mattermost Server.
How can an attacker exploit CVE-2023-3577?
An attacker can exploit CVE-2023-3577 by sending unauthorized requests to localhost/intranet during the interactive dialog in Mattermost.
How can I fix CVE-2023-3577?
To fix CVE-2023-3577, it is recommended to upgrade Mattermost Server to a version beyond 7.10.3 or 7.8.7, depending on your current version.

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