What is the CVSS score of CVE-2020-5539?

CVE-2020-5539 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.8%.

Grandit CVE-2020-5539

MEDIUM

Authorization Bypass Through User-Controlled Key (CWE-639)

2020-03-02 vultures@jpcert.or.jp

Authentication Bypass Grandit

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

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:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Mar 02, 2020 - 08:15 nvd

MEDIUM 6.5

DescriptionNVD

AnalysisAI

GRANDIT Ver.1.6, Ver.2.0, Ver.2.1, Ver.2.2, Ver.2.3, and Ver.3.0 do not properly manage sessions, which allows remote attackers to impersonate an arbitrary user and then alter or disclose the. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-639. GRANDIT Ver.1.6, Ver.2.0, Ver.2.1, Ver.2.2, Ver.2.3, and Ver.3.0 do not properly manage sessions, which allows remote attackers to impersonate an arbitrary user and then alter or disclose the information via unspecified vectors. Affected products include: Grandit.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.