What is the CVSS score of CVE-2020-8118?

CVE-2020-8118 has a CVSS 3.1 base score of 5.0 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N. EPSS exploitation probability: 1.3%.

Is there a public PoC exploit available for CVE-2020-8118?

Yes, a public proof-of-concept exploit is available for CVE-2020-8118. Prioritise patching immediately. EPSS: 1.3%.

Nextcloud Server CVE-2020-8118

MEDIUM

Server-Side Request Forgery (SSRF) (CWE-918)

2020-02-04 support@hackerone.com

SSRF Nextcloud Server Nextcloud Backports Sle Opensuse Suse Linux Enterprise Server Novell

5.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.0 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Feb 04, 2020 - 20:15 nvd

MEDIUM 5.0

DescriptionNVD

An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.

AnalysisAI

An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application. Affected products include: Nextcloud Nextcloud Server, Opensuse Backports Sle, Novell Suse Linux Enterprise Server.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.