CVE-2021-28799

Description

An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If exploited, the vulnerability allows remote attackers to log in to a device. This issue affects: QNAP Systems Inc. HBS 3 versions prior to v16.0.0415 on QTS 4.5.2; versions prior to v3.0.210412 on QTS 4.3.6; versions prior to v3.0.210411 on QTS 4.3.4; versions prior to v3.0.210411 on QTS 4.3.3; versions prior to v16.0.0419 on QuTS hero h4.5.1; versions prior to v16.0.0419 on QuTScloud c4.5.1~c4.5.4. This issue does not affect: QNAP Systems Inc. HBS 2 . QNAP Systems Inc. HBS 1.3 .

References

https://www.bleepingcomputer.com/news/security/qnap-fixes-nas-backup-software-zero-day-exploited-at-pwn2own/

https://www.tenable.com/cyber-exposure/a-look-inside-the-ransomware-ecosystem

https://web.archive.org/web/20211025233339/https://twitter.com/pancak3lullz/status/1452679527197560837

https://unit42.paloaltonetworks.com/ech0raix-ransomware-soho/

https://www.bleepingcomputer.com/news/security/qnap-confirms-qlocker-ransomware-used-hbs-backdoor-account/

https://www.qnap.com/en/security-advisory/QSA-21-13

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3