Auth bypass in Castel Nextgen Dvr
CVE-2020-11679
Castel NextGen DVR v1.0.0 is vulnerable to privilege escalation through the Adminstrator/Users/Edit/:UserId functionality. Adminstrator/Users/Edit/:UserId fails to check that the request was submitted by an Administrator. This allows a normal user to escalate their privileges by adding additional roles to their account.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Castel Nextgen Dvr
- Castel Nextgen Dvr Firmware — versions 1.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitymetrics.com/blog/attackers-known-unknown-authorization-bypass (Exploit, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Jun/8 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/157954/Castel-NextGen-DVR-1.0.0-Bypass-CSRF-Discl… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-11679?
- CVE-2020-11679 is a high-severity vulnerability in Castel Nextgen Dvr, classified under Missing Authorization. CVSS score: 8.8/10. Published 2020-06-04.
- How severe is CVE-2020-11679?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-11679 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.