CVE-2023-26436
High
Description
Attackers with access to the "documentconverterws" API were able to inject serialized Java objects, that were not properly checked during deserialization. Access to this API endpoint is restricted to local networks by default. Arbitrary code could be injected that is being executed when processing the request. A check has been introduced to restrict processing of legal and expected classes for this API. We now log a warning in case there are attempts to inject illegal classes. No publicly available exploits are known.
SeverityHigh
CVSS7.1
Exploit probability—
ProductOpen-xchange Appsuite Backend
PublishedJun 20, 2023
First seenJun 20, 2023
Weakness typeCWE-94Code injection
How to fix
Update
- open-xchange open-xchange_appsuite_backend7.10.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| open-xchange open-xchange_appsuite_backend | v < 7.10.6, 7.10.6 | 7.10.6 |
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