Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2023-32031

8.8HIGH

Key Information:

Vendor
Microsoft
Status
Microsoft Exchange Server 2019 Cumulative Update 12
Microsoft Exchange Server 2016 Cumulative Update 23
Microsoft Exchange Server 2019 Cumulative Update 13
Vendor
CVE Published:
14 June 2023

Badges

👾 Exploit Exists🟡 Public PoC📰 News Worthy

Summary

The Microsoft Exchange Server vulnerability allows attackers to execute arbitrary code on the server, potentially leading to unauthorized access and data breaches. This issue arises from insufficient input validation in the Exchange Server software, creating a pathway for exploitation. Administrators should ensure that their systems are up to date with the latest patches and security updates to mitigate against this threat. For further details and a comprehensive guide, refer to the official Microsoft advisory.

Affected Version(s)

Microsoft Exchange Server 2016 Cumulative Update 23 x64-based Systems 15.01.0 < 15.01.2507.027

Microsoft Exchange Server 2019 Cumulative Update 12 x64-based Systems 15.02.0 < 15.02.1118.030

Microsoft Exchange Server 2019 Cumulative Update 13 x64-based Systems 15.02.0 < 15.02.1258.016

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-32031
Created by Avento

News Articles

favicon imageKrebs on Security

Microsoft Patch Tuesday, June 2023 Edition – Krebs on Security

Microsoft Corp. today released software updates to fix dozens of security vulnerabilities in its Windows operating systems and other software. This month's relatively light patch load has another added bonus for system administrators everywhere: It appears to be the first…

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 📰

    First article discovered by Krebs on Security

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.