Auth bypass in Nextcloud Server
CVE-2020-8154
An Insecure direct object reference vulnerability in Nextcloud Server 18.0.2 allowed an attacker to remote wipe devices of other users when sending a malicious request directly to the endpoint.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Nextcloud Server
- Nextcloud Server — versions 18.0.3
Weakness classification (CWE)
References
- hackerone.com/reports/819807 (Exploit, Third Party Advisory)
- nextcloud.com/security/advisory/ (Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00037.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00038.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00040.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00019.html (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-8154?
- CVE-2020-8154 is a high-severity vulnerability in Nextcloud Server, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.7/10. Published 2020-05-12.
- How severe is CVE-2020-8154?
- High severity. CVSS v3 base score is 7.7 out of 10.