CVE-2023-26451

High

Description

Functions with insufficient randomness were used to generate authorization tokens of the integrated oAuth Authorization Service. Authorization codes were predictable for third parties and could be used to intercept and take over the client authorization process. As a result, other users accounts could be compromised. The oAuth Authorization Service is not enabled by default. We have updated the implementation to use sources with sufficient randomness to generate authorization tokens. No publicly available exploits are known.

SeverityHigh
CVSS7.5
Exploit probability68. percentile1.2%
ProductOpen-xchange Appsuite Backend
PublishedAug 2, 2023
First seenAug 2, 2023
Weakness typeCWE-330CWE-330

How to fix

Affected products

ProductAffected versionsFixed in
open-xchange open-xchange_appsuite_backendv ≤ 8.11.0—

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