CVE-2023-26455: High severity open-xchange app suite backend vulnerability

Published Nov 2, 2023
·
Updated

RMI was not requiring authentication when calling ChronosRMIService:setEventOrganizer. Attackers with local or adjacent network access could abuse the RMI service to modify calendar items using RMI. RMI access is restricted to localhost by default. The interface has been updated to require authenticated requests. No publicly available exploits are known.

Affected Software

43 affected components
Open-Xchange Open-Xchange AppSuite<7.10.6
Open-Xchange Open-Xchange AppSuite=7.10.6
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6069
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6073
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6080
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6085
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6093
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6102
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6112
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6121
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6133
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6138
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6141
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6146
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6147
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6148
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6150
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6156
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6161
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6166
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6173
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6176
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6178
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6189
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6194
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6199
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6204
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6205
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6209
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6210
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6214
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6215
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6216
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6218
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6219
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6220
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6227
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6230
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6233
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6235
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6236
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6239
Open-Xchange Open-Xchange AppSuite=7.10.6-patch_release_6241

Event History

Nov 2, 2023
CVE Published
via MITRE·01:01 PM
Data Sourced
via MITRE·01:01 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the vulnerability ID for this security issue?

The vulnerability ID for this security issue is CVE-2023-26455.

2

What is the severity of CVE-2023-26455?

The severity of CVE-2023-26455 is high with a severity value of 7.8.

3

How does CVE-2023-26455 affect Open-xchange Appsuite?

CVE-2023-26455 affects Open-xchange Appsuite 7.10.6.

4

What is the risk of CVE-2023-26455?

The risk of CVE-2023-26455 is that attackers with local or adjacent network access could abuse the RMI service to modify calendar items using RMI.

5

How can I fix CVE-2023-26455?

To fix CVE-2023-26455, update Open-xchange Appsuite to version 7.10.6-patch_release_6243 or later.

Company

Resources

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