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Mail app does not respect download permissions in shares

Low
nickvergessen published GHSA-pwpp-fvcr-w862 Nov 15, 2024

Package

Mail (Nextcloud)

Affected versions

>=2.2.0, >= 3.6.0, >= 3.7.0

Patched versions

2.2.10, 3.6.2, 3.7.2

Description

Impact

The Nextcloud mail app incorrectly allowed attaching shared files without download permissions as attachments. This allowed users to send them the files to themselves and then downloading it from their mail clients.

Patches

It is recommended that the Nextcloud Mail is upgraded to 2.2.10, 3.6.2 or 3.7.2

Workarounds

  • Disable app mail

References

For more information

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Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

CVE ID

CVE-2024-52509

Weaknesses

Credits