Auth bypass in Os4ed Opensis
CVE-2020-27408
OpenSIS Community Edition through 7.6 is affected by incorrect access controls for the file ResetUserInfo.php that allow an unauthenticated attacker to change the password of arbitrary users.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/OS4ED/openSIS-Responsive-Design/releases (Third Party Advisory, Release Notes)
- insinuator.net/2020/10/opensis-vulnerabilities/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27408?
- CVE-2020-27408 is a high-severity vulnerability in Os4ed Opensis, classified under Improper Authentication. CVSS score: 7.5/10. Published 2020-12-04.
- How severe is CVE-2020-27408?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-27408 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.