CVE-2023-26435: SSRF
First published: Tue Jun 20 2023(Updated: )
It was possible to call filesystem and network references using the local LibreOffice instance using manipulated ODT documents. Attackers could discover restricted network topology and services as well as including local files with read permissions of the open-xchange system user. This was limited to specific file-types, like images. We have improved existing content filters and validators to avoid including any local resources. No publicly available exploits are known.
Credit: security@open-xchange.com security@open-xchange.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Open-xchange Open-xchange Appsuite Backend | <7.10.6 | |
| Open-xchange Open-xchange Appsuite Backend | =7.10.6 | |
| Open-xchange Open-xchange Appsuite Backend | =7.10.6-revision_39 |
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Reference Links
- https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf
- https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json
- http://seclists.org/fulldisclosure/2023/Jun/8
- http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html
- https://documentation.open-xchange.com/security/advisories/csaf/oxas-adv-2023-0002.json
Frequently Asked Questions
What is CVE-2023-26435?
CVE-2023-26435 is a vulnerability that allowed attackers to call filesystem and network references using manipulated ODT documents in the local LibreOffice instance, potentially exposing restricted network topology and services.
What is the severity of CVE-2023-26435?
CVE-2023-26435 has a severity level of medium and a severity value of 5.
How does CVE-2023-26435 affect Open-xchange Appsuite Backend?
Open-xchange Appsuite Backend versions up to 7.10.6 and 7.10.6-revision_39 are affected by CVE-2023-26435.
How can I fix CVE-2023-26435?
To fix CVE-2023-26435, it is recommended to update Open-xchange Appsuite Backend to a version beyond 7.10.6-revision_39.
Where can I find more information about CVE-2023-26435?
You can find more information about CVE-2023-26435 in the provided references: http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html, http://seclists.org/fulldisclosure/2023/Jun/8, and https://documentation.open-xchange.com/security/advisories/csaf/oxas-adv-2023-0002.json.
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- source/NVD
- agent/software-canonical-lookup
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- vendor/open-xchange
- canonical/open-xchange open-xchange appsuite backend
- version/open-xchange open-xchange appsuite backend/7.10.6
- version/open-xchange open-xchange appsuite backend/7.10.6-revision_39