What is the CVSS score of CVE-2021-4097?

CVE-2021-4097 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.8%.

Is there a public PoC exploit available for CVE-2021-4097?

Yes, a public proof-of-concept exploit is available for CVE-2021-4097. Prioritise patching immediately. EPSS: 0.8%.

Is there a patch available for CVE-2021-4097?

Yes, a patch is available for CVE-2021-4097. Update the affected software to the latest version immediately.

Php Server Monitor CVE-2021-4097

MEDIUM

Improper Neutralization of CRLF Sequences ('CRLF Injection') (CWE-93)

2021-12-12 security@huntr.dev

Information Disclosure Php Server Monitor

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Dec 12, 2021 - 00:15 nvd

MEDIUM 5.4

DescriptionNVD

phpservermon is vulnerable to Improper Neutralization of CRLF Sequences

AnalysisAI

phpservermon is vulnerable to Improper Neutralization of CRLF Sequences. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-93. phpservermon is vulnerable to Improper Neutralization of CRLF Sequences Affected products include: Phpservermonitor Php Server Monitor.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.