Auth bypass in Kaseya Unitrends Backup
CVE-2018-6328
It was discovered that the Unitrends Backup (UB) before 10.1.0 user interface was exposed to an authentication bypass, which then could allow an unauthenticated user to inject arbitrary commands into its /api/hosts parameters using backquotes.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.644 (99.2th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.644 · newest: 0.644 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/45559/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- support.unitrends.com/UnitrendsBackup/s/article/000006002 (Vendor Advisory)
- www.exploit-db.com/exploits/44297/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- support.unitrends.com/UnitrendsBackup/s/article/000001150 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-6328?
- CVE-2018-6328 is a critical-severity vulnerability in Kaseya Unitrends Backup, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-03-14.
- How severe is CVE-2018-6328?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-6328 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.