PT-2021-5087 · Microsoft · Exchange Server

CVE-2021-42305 · Published 2021-11-09 · Updated 2023-12-28

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:C/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 for spoofing attacks. It enables a remote attacker to affect the system.

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

UI Misrepresentation of Critical Information

Weakness Enumeration

CWE-451

Related Identifiers

BDU:2021-05869

CVE-2021-42305

Affected Products

Exchange Server

References · 7

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42305 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42305 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05869 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-42305 · Security Note
• https://osv.dev/vulnerability/CVE-2021-42305 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021110940 · Note
• https://t.me/cvenotify/23191 · Telegram Post