Vulnerability vector:
- Base vulnerability score (CVSSv3.1): CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity (CVSSv3.1): 9.8 (critical)
- Base vulnerability score (CVSSv4.0): CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Severity (CVSSv4.0): 9.3 (critical)
Description:
The vulnerability was identified in Veeam Backup & Replication versions 9.5, 10, 11.
The discovered vulnerability allows an attaker to authenticate using a NULL-session. This may lead to gaining control over the target system.
Vulnerability status: Confirmed by vendor
Date of vulnerability remediation: 12.03.2022
Recommendations:
- Update to version 11a (build 11.0.1.1261 P20220302), 10a (build 10.0.1.4854 P20220304)
For Veeam Backup & Replication 9.5, please upgrade to a supported product version.
Additional information: Security Bulletin
Researcher: Nikita Petrov (Positive Technologies)