CVE-2023-26431 Information

Description

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 insight about topology and running services. We now respect possible IPV4-mapped IPv6 addresses when checking if contained in a deny-list. No publicly available exploits are known.

Reference

https://documentation.open-xchange.com/security/advisories/csaf/oxas-adv-2023-0002.json https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf