Auth bypass in Amcrest Web Server
CVE-2020-7222
An issue was discovered in Amcrest Web Server 2.520.AC00.18.R 2017-06-29 WEB 3.2.1.453504. The login page responds with JavaScript when one tries to authenticate. An attacker who changes the result parameter (to true) in this JavaScript code can bypass authentication and achieve limited privileges (ability to see every option but not modify them).
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (69.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Amcrest Web Server — versions 2.520.ac00.18.r
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sku11army.blogspot.com/2020/01/amcrest-2520ac0018r-login-bypass.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7222?
- CVE-2020-7222 is a medium-severity vulnerability in Amcrest Web Server, classified under Improper Authentication. CVSS score: 5.3/10. Published 2020-01-18.
- How severe is CVE-2020-7222?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-7222 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.