Auth bypass in Kronos Web Time And Attendance
CVE-2020-8495
In Kronos Web Time and Attendance (webTA) 3.8.x and later 3.x versions before 4.0, the com.threeis.webta.H491delegate servlet allows an attacker with Timekeeper or Supervisor privileges to gain unauthorized administrative privileges within the application via the delegate, delegateRole, and delegatorUserId parameters.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.031 (87.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.kronos.com/products/kronos-webta (Product, Vendor Advisory)
- www.nolanbkennedy.com/post/privilege-escalation-in-kronos-web-time-and-attendan… (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/156215/Kronos-WebTA-4.0-Privilege-Escalation-Cros… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8495?
- CVE-2020-8495 is a high-severity vulnerability in Kronos Web Time And Attendance, classified under Missing Authorization. CVSS score: 7.5/10. Published 2020-01-30.
- How severe is CVE-2020-8495?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-8495 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.