CVE-2023-26431
Medium
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.
SeverityMedium
CVSS5.0
Exploit probability—
ProductOpen-xchange Appsuite Backend
PublishedJun 20, 2023
First seenJun 20, 2023
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- open-xchange open-xchange_appsuite_backend7.10.6, 8.11.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| open-xchange open-xchange_appsuite_backend | v < 7.10.6, 8.0.0 ≤ v < 8.11.0, 7.10.6 | 7.10.6, 8.11.0 |
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