PT-2021-3090 · Microsoft · Exchange Server

Mr_Me + 1 · Published 2021-05-11 · Updated 2023-08-02 · CVE-2021-31209

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Exchange Server (affected versions not specified)

Description The issue is related to errors in the representation of information by the user interface, allowing a remote attacker to conduct spoofing attacks. It affects the system, enabling attackers to exploit it.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Spoofing

Authentication Bypass by Spoofing

UI Misrepresentation of Critical Information

Weakness Enumeration

CWE-290

CWE-451

Related Identifiers

BDU:2021-02713

CVE-2021-31209

ZDI-21-615

Affected Products

Exchange Server

References · 9

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31209 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31209 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-615 · Security Note
• https://bdu.fstec.ru/vul/2021-02713 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-31209 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31209 · Vendor Advisory
• https://t.me/cybersecuritytechnologies/4169 · Telegram Post
• https://t.me/cvenotify/14620 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021051112 · Note