What is the CVSS score of CVE-2021-27858?

CVE-2021-27858 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 2.7%.

Is there a public PoC exploit available for CVE-2021-27858?

Yes, a public proof-of-concept exploit is available for CVE-2021-27858. Prioritise patching immediately. EPSS: 2.7%.

Ipvpn Firmware CVE-2021-27858

MEDIUM

Missing Authorization (CWE-862)

2021-12-15 cret@cert.org

Authentication Bypass Ipvpn Firmware Mpvpn Firmware Warp Firmware

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Dec 15, 2021 - 20:15 nvd

MEDIUM 5.3

DescriptionNVD

A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote attacker to access at least the URL "/fpui/jsp/index.jsp" leading to unknown impact, presumably some violation of confidentiality. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA004.

AnalysisAI

A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote attacker to access at. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. A missing authorization vulnerability in the web management interface of FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 allows a remote attacker to access at least the URL "/fpui/jsp/index.jsp" leading to unknown impact, presumably some violation of confidentiality. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA004. Affected products include: Fatpipeinc Ipvpn Firmware, Fatpipeinc Mpvpn Firmware, Fatpipeinc Warp Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.