CVE-2023-23943

Blind SSRF via server URL input in the Nextcloud Mail app

Published: Feb 6, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-918

5.0MEDIUM

Description

Nextcloud mail is an email app for the nextcloud home server platform. In affected versions the SMTP, IMAP and Sieve host fields allowed to scan for internal services and servers reachable from within the local network of the Nextcloud Server. It is recommended that the Nextcloud Maill app is upgraded to 1.15.0 or 2.2.2. The only known workaround for this issue is to completely disable the nextcloud mail app.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-918

Affected Products

nextcloud

oss-project·DEaka nextcloud server

mailSaaSSaaS Service

Cloud & SaaS / saas-application

security-advisoriesSaaSSaaS Service

Cloud & SaaS / saas-application

Nextcloud GmbH

commercial·DEaka nextcloud enterprise server, nextcloud calendar, nextcloud server

Nextcloud mailSaaSSaaS Service

Cloud & SaaS / saas-application

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

https://github.com/nextcloud/mail/pull/7796

github.com

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8gcx-r739-9pf6

github.com

https://hackerone.com/reports/1736390

hackerone.com

and 3 more references View all →

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