open-xchange appsuite backend vulnerabilities and exploits

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Default permissions for a properties file were too permissive. Local system users could read potentially sensitive information. We updated the default permissions for noreply.properties set during package installation. No publicly available exploits are known.

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

Attackers can successfully request arbitrary snippet IDs, including E-Mail signatures of other users within the same context. Signatures of other users could be read even though they are not explicitly shared. We improved permission handling when requesting snippets that are not ...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

Control characters were not removed when exporting user feedback content. This allowed malicious users to include unexpected content via user feedback and potentially break the exported data structure. We now drop all control characters that are not whitespace character during th...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

IPv4-mapped IPv6 addresses did not get recognized as "local" by the code and a connection attempt is made. Attackers with access to user accounts could use this to bypass existing deny-list functionality and trigger requests to restricted network infrastructure to gain ...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

When adding an external mail account, processing of SMTP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue SMTP service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now ...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

When adding an external mail account, processing of IMAP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue IMAP service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now ...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

When adding an external mail account, processing of POP3 "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue POP3 service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now ...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

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...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

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 be...

Open-xchange Open-xchange Appsuite Backend Open-xchange Open-xchange Appsuite Backend 7.10.6

Attackers with access to user accounts can inject arbitrary control characters to SIEVE mail-filter rules. This could be abused to access SIEVE extension that are not allowed by App Suite or to inject rules which would break per-user filter processing, requiring manual cleanup of...

Open-xchange Open-xchange Appsuite Backend 7.10.6 Open-xchange Open-xchange Appsuite Backend 8.10.0

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