9.8
CRITICAL
CVE-2021-27856
FatPipe WARP, IPVPN, and MPVPN Unauthenticated Administrative Privilege
Description

FatPipe WARP, IPVPN, and MPVPN software prior to versions 10.1.2r60p91 and 10.2.2r42 includes an account named "cmuser" that has administrative privileges and no password. Older versions of FatPipe software may also be vulnerable. The FatPipe advisory identifier for this vulnerability is FPSA002.

INFO

Published Date :

Dec. 15, 2021, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:58 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-27856 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fatpipeinc ipvpn_firmware
2 Fatpipeinc warp_firmware
3 Fatpipeinc mpvpn_firmware
4 Fatpipeinc ipvpn
5 Fatpipeinc warp
6 Fatpipeinc mpvpn
: Total Affected Vendor : 1 | Products : 6
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-27856.

URL Resource
https://www.fatpipeinc.com/support/cve-list.php Vendor Advisory
https://www.zeroscience.mk/codes/fatpipe_backdoor.txt Third Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5684.php Third Party Advisory
https://www.fatpipeinc.com/support/cve-list.php Vendor Advisory
https://www.zeroscience.mk/codes/fatpipe_backdoor.txt Third Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5684.php Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27856 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27856 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.fatpipeinc.com/support/cve-list.php
    Added Reference https://www.zeroscience.mk/codes/fatpipe_backdoor.txt
    Added Reference https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5684.php
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CWE CWE-862 NVD-CWE-Other
  • Initial Analysis by [email protected]

    Dec. 21, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.fatpipeinc.com/support/cve-list.php No Types Assigned https://www.fatpipeinc.com/support/cve-list.php Vendor Advisory
    Changed Reference Type https://www.zeroscience.mk/codes/fatpipe_backdoor.txt No Types Assigned https://www.zeroscience.mk/codes/fatpipe_backdoor.txt Third Party Advisory
    Changed Reference Type https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5684.php No Types Assigned https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5684.php Third Party Advisory
    Added CWE NIST CWE-862
    Added CPE Configuration AND OR *cpe:2.3:o:fatpipeinc:ipvpn_firmware:5.2.0:r34:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:6.1.2:r70p26:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:6.1.2:r70p45-m:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:6.1.2:r70p75-m:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:7.1.2:r39:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r129:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r144:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r150:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r156:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p12:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p16:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p17:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p2:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p20:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p26:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r161p3:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r164:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r164p4:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r164p5:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r165:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r180p2:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:9.1.2:r185:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p10:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p13:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p32:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p35:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p45:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p55:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p58:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p58s1:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p65:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p71:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.1.2:r60p82:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.2.2:r10:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.2.2:r25:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:ipvpn_firmware:10.2.2:r38:*:*:*:*:*:* OR cpe:2.3:h:fatpipeinc:ipvpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:fatpipeinc:mpvpn_firmware:5.2.0:r34:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:6.1.2:r70p26:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:6.1.2:r70p45-m:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:6.1.2:r70p75-m:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:7.1.2:r39:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r129:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r144:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r150:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r156:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r161p12:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r161p16:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r161p17:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r161p2:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r161p20:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r161p26:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r161p3:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r164:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r164p4:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r164p5:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r165:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r180p2:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:9.1.2:r185:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p10:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p13:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p32:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p35:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p45:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p55:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p58:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p58s1:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p65:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p71:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.1.2:r60p82:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.2.2:r10:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.2.2:r25:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:mpvpn_firmware:10.2.2:r38:*:*:*:*:*:* OR cpe:2.3:h:fatpipeinc:mpvpn:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:fatpipeinc:warp_firmware:5.2.0:r34:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:6.1.2:r70p26:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:6.1.2:r70p45-m:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:6.1.2:r70p75-m:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:7.1.2:r39:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r129:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r144:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r150:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r156:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r161p12:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r161p16:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r161p17:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r161p2:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r161p20:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r161p26:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r161p3:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r164:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r164p4:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r164p5:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r165:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r180p2:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:9.1.2:r185:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p10:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p13:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p32:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p35:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p45:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p55:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p58:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p58s1:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p65:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p71:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.1.2:r60p82:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.2.2:r10:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.2.2:r25:*:*:*:*:*:* *cpe:2.3:o:fatpipeinc:warp_firmware:10.2.2:r38:*:*:*:*:*:* OR cpe:2.3:h:fatpipeinc:warp:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27856 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-27856 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.36 }} 0.03%

score

0.72299

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: