What is the CVSS score of CVE-2021-27670?

CVE-2021-27670 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 61.3%.

Is there a public PoC exploit available for CVE-2021-27670?

Yes, a public proof-of-concept exploit is available for CVE-2021-27670. Prioritise patching immediately. EPSS: 61.3%.

Appspace CVE-2021-27670

CRITICAL

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

2021-02-25 cve@mitre.org

SSRF Appspace

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Feb 25, 2021 - 01:15 nvd

CRITICAL 9.8

DescriptionNVD

Appspace 6.2.4 allows SSRF via the api/v1/core/proxy/jsonprequest url parameter.

AnalysisAI

Appspace 6.2.4 allows SSRF via the api/v1/core/proxy/jsonprequest url parameter. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, 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. Appspace 6.2.4 allows SSRF via the api/v1/core/proxy/jsonprequest url parameter. Affected products include: Appspace.

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.