PT-2022-1793 · Microsoft · Exchange Server

Andrew Ruddick · Published 2022-01-11 · Updated 2024-11-14 · CVE-2022-21855

Positive Technologies (AI Summary)

CVSS v3.1

9.0

Critical

Base vector

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

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

Description The issue is related to insufficient input validation in Microsoft Exchange Server, which can be exploited by a remote attacker to execute arbitrary code by sending specially crafted data to the server. This allows for remote code execution.

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

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2022-01184

CVE-2022-21855

Affected Products

Exchange Server

References · 10

• https://osv.dev/vulnerability/CVE-2022-21855 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-21855 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-21855 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21855 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21855 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01184 · Security Note
• https://t.me/cvenotify/25259 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2022011125 · Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21855 · Note
• https://twitter.com/Gi7w0rm/status/1689166826536615936 · Twitter Post