Missing authentication for critical function in Backup & Replication - CVE-2023-27532
Published: March 24, 2023 / Updated: March 4, 2024
Vulnerability identifier: #VU74001
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-27532
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to missing authorization within the Veeam.Backup.Service.exe. A remote attacker can connect to the affected service that is listening on port 9401/TCP, obtain encrypted credentials stored in the configuration database and use this information to access the backup infrastructure hosts.
Affected software
Backup & Replication
How to mitigate CVE-2023-27532
Install updates from vendor's website.
Backup & Replication - addressed in versions 11.0.1.1261 P20230227, 12.0.0.1420 P20230223