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CVE-2023-45660

Require strict cookies for image proxy requests in Nextcloud Mail

Published: Oct 16, 2023Updated: Nov 21, 2024 Sources: CVE List NVDCWE-918
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.6%
Top 56.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Nextcloud mail is an email app for the Nextcloud home server platform. In affected versions a missing check of origin, target and cookies allows for an attacker to abuse the proxy endpoint to denial of service a third server. It is recommended that the Nextcloud Mail is upgraded to 2.2.8 or 3.3.0. There are no known workarounds for this vulnerability.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-918

Affected Products

security-advisoriesnextcloud
SaaSSaaS Service
Cloud & SaaS / saas-application
mailnextcloud
On-prem
Cloud & SaaS / saas-application
nextcloudoss-projectDECloud & SaaSaka nextcloud server

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37
github.com
https://github.com/nextcloud/mail/pull/8459
github.com
https://hackerone.com/reports/1895874
hackerone.com

Timeline

Published
Oct 16, 2023
Last Updated
Nov 21, 2024

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