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Public Security Vulnerability
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Resolution: Fixed
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High
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5.5, 7.19.0, 7.20.0, 8.0.0, 8.1.0, 8.2.0, 8.3.0, 8.4.0, 8.5.0, 8.6.0, 8.8.0, 8.7.1
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None
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7.6
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High
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CVE-2023-45859
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Atlassian (Internal)
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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
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Improper Authorization
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Confluence Data Center
This High severity com.hazelcast:hazelcast Dependency vulnerability was introduced in versions 5.5 of Confluence Data Center and Server.
This com.hazelcast:hazelcast Dependency vulnerability, with a CVSS Score of 7.6 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation which has no impact to confidentiality, no impact to integrity, high impact to availability, and requires no user interaction.
Data Center
Atlassian recommends that Confluence Data Center customers upgrade to the latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
| Affected versions | Fixed versions |
|---|---|
| 8.9.0 | 8.9.0 |
| from 8.8.0 to 8.8.1 | 8.9.0 |
| from 8.7.0 to 8.7.2 | 8.9.0 |
| from 8.6.0 to 8.6.2 | 8.9.0 |
| from 8.5.0 to 8.5.8 LTS | 8.9.0 or 8.5.9 LTS recommended |
| from 8.4.0 to 8.4.5 | 8.9.0 or 8.5.9 LTS recommended |
| from 8.3.0 to 8.3.4 | 8.9.0 or 8.5.9 LTS recommended |
| from 8.2.0 to 8.2.3 | 8.9.0 or 8.5.9 LTS recommended |
| from 8.1.0 to 8.1.4 | 8.9.0 or 8.5.9 LTS recommended |
| from 8.0.0 to 8.0.4 | 8.9.0 or 8.5.9 LTS recommended |
| from 7.20.0 to 7.20.3 | 8.9.0 or 8.5.9 LTS recommended |
| from 7.19.0 to 7.19.21 LTS | 8.9.0 or 8.5.9 LTS recommended or 7.19.22 LTS |
| from 7.18.0 to 7.18.3 | 8.9.0 or 8.5.9 LTS recommended or 7.19.22 LTS |
| from 7.17.0 to 7.17.5 | 8.9.0 or 8.5.9 LTS recommended or 7.19.22 LTS |
| Any earlier versions | 8.9.0 or 8.5.9 LTS recommended or 7.19.22 LTS |
Server
Atlassian recommends that Confluence Server customers upgrade to the latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
| Affected versions | Fixed versions |
|---|---|
| from 8.5.0 to 8.5.8 LTS | 8.5.9 LTS recommended |
| from 8.4.0 to 8.4.5 | 8.5.9 LTS recommended |
| from 8.3.0 to 8.3.4 | 8.5.9 LTS recommended |
| from 8.2.0 to 8.2.3 | 8.5.9 LTS recommended |
| from 8.1.0 to 8.1.4 | 8.5.9 LTS recommended |
| from 8.0.0 to 8.0.4 | 8.5.9 LTS recommended |
| from 7.20.0 to 7.20.3 | 8.5.9 LTS recommended |
| from 7.19.0 to 7.19.21 LTS | 8.5.9 LTS recommended or 7.19.22 LTS |
| from 7.18.0 to 7.18.3 | 8.5.9 LTS recommended or 7.19.22 LTS |
| from 7.17.0 to 7.17.5 | 8.5.9 LTS recommended or 7.19.22 LTS |
| Any earlier versions | 8.5.9 LTS recommended or 7.19.22 LTS |
See the release notes (https://confluence.atlassian.com/doc/confluence-release-notes-327.html). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives).
This vulnerability was found internally.
[CONFSERVER-95839] Improper Authorization com.hazelcast:hazelcast Dependency in Confluence Data Center and Server
If it allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation why does it have no impact to confidentiality, but has a high impact to availability? Should not it be exactly another way: high impact to confidentiality and no impact to availability?
Is there any possibility to mitigate the risk through updating the dependency directly without a Confluence update if we are not able to update Confluence next days?
There seems to be something "off" in the some parts of the tables above: