Microsoft Exchange Information Disclosure Vulnerability (Microsoft Microsoft Exchange Server 2019 Cumulative Update 6)
En bref
- Source
- NVD
- EPSS
- EPSS 2.73 % · centile 86 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- microsoft
- Statut NVD
- Modified
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Description
<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>
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L | NVD · secure@microsoft.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | NVD · nvd@nist.gov (Secondary) |
| CVSS 2.0 | MEDIUM 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2020-8927
- GCVE · GCVE-0-2020-16969
Avis du CERT-FR
- CERTFR-2020-AVI-636 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Microsoft · Microsoft Exchange Server 2019 Cumulative Update 6 | affected 15.02.0 < publication |
| Microsoft · Microsoft Exchange Server 2016 Cumulative Update 17 | affected 15.01.0 < publication |
| Microsoft · Microsoft Exchange Server 2019 Cumulative Update 7 | affected 15.02.0 < publication |
| Microsoft · Microsoft Exchange Server 2016 Cumulative Update 18 | affected 15.01.0 < publication |
| Microsoft · Microsoft Exchange Server 2013 Cumulative Update 23 | affected 15.00.0 < publication |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |