Cyber Resilience

CVE-2021-27859

High

Published: 15 December 2021

Published
15 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0085 75.4th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-27859 is a high-severity Missing Authorization (CWE-862) vulnerability in Fatpipeinc Ipvpn Firmware. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 24.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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 an authenticated, remote attacker with read-only privileges to create an account with administrative privileges. Older versions of…

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FatPipe software may also be vulnerable. This does not appear to be a CSRF vulnerability. The FatPipe advisory identifier for this vulnerability is FPSA005.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

fatpipeinc
ipvpn firmware
10.1.2, 10.2.2, 5.2.0, 6.1.2, 7.1.2
fatpipeinc
mpvpn firmware
10.1.2, 10.2.2, 5.2.0, 6.1.2, 7.1.2
fatpipeinc
warp firmware
10.1.2, 10.2.2, 5.2.0, 6.1.2, 7.1.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-862

Requiring an access control policy ensures authorization checks are defined and applied for critical functions.

addresses: CWE-862

Reviews of access controls detect missing authorization checks on critical functions or resources.

addresses: CWE-862

Documenting permitted unauthenticated actions prevents missing authorization by making all exceptions explicit and subject to organizational review.

addresses: CWE-862

Requiring attribute association with information prevents authorization from being performed without necessary security or privacy context.

addresses: CWE-862

Mandating authorization prior to allowing remote connections addresses missing authorization for remote access.

addresses: CWE-862

Mandating authorization before wireless connections are allowed prevents missing authorization for wireless access.

addresses: CWE-862

The control requires authorization before allowing mobile device connections, directly mitigating missing authorization for system access.

addresses: CWE-862

Requiring approvals for account creation and specifying authorizations ensures authorization is not missing for system access.

References