Total vulnerabilities in the database
<p>An information disclosure vulnerability exists in how Microsoft Exchange validates tokens when handling certain messages. An attacker who successfully exploited the vulnerability could use this to gain further information from a user.</p> <p>To exploit the vulnerability, an attacker could include specially crafted OWA messages that could be loaded, without warning or filtering, from the attacker-controlled URL. This callback vector provides an information disclosure tactic used in web beacons and other types of tracking systems.</p> <p>The security update corrects the way that Exchange handles these token validations.</p>
| Software | From | Fixed in |
|---|---|---|
| microsoft / exchange_server | 2013-cumulative_update_23 | 2013-cumulative_update_23.x |
| microsoft / exchange_server | 2019-cumulative_update_6 | 2019-cumulative_update_6.x |
| microsoft / exchange_server | 2016-cumulative_update_17 | 2016-cumulative_update_17.x |
| microsoft / exchange_server | 2019-cumulative_update_7 | 2019-cumulative_update_7.x |
| microsoft / exchange_server | 2016-cumulative_update_18 | 2016-cumulative_update_18.x |