CVE-2021-27104 : Accellion FTA 9_12_370 and earlier is affected by OS command execution via a cra

Accellion FTA 9_12_370 and earlier is affected by OS command execution via a crafted POST request to various admin endpoints. The fixed version is FTA_9_12_380 and later.

Published 2021-02-16 21:15:13

Updated 2021-02-17 18:52:07

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2021-27104

Accellion » FTA
Versions up to, including, (<=) 9_12_370
cpe:2.3:a:accellion:fta:*:*:*:*:*:*:*:*
Matching versions

CVE-2021-27104 is in the CISA Known Exploited Vulnerabilities Catalog

This issue is known to have been leveraged as part of a ransomware campaign.

CISA vulnerability name:

Accellion FTA OS Command Injection Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

Accellion FTA contains an OS command injection vulnerability exploited via a crafted POST request to various admin endpoints.

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2021-27104

Added on 2021-11-03 Action due date 2021-11-17

Exploit prediction scoring system (EPSS) score for CVE-2021-27104

EPSS FAQ

1.89%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 88 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-27104

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
10.0	HIGH	AV:N/AC:L/Au:N/C:C/I:C/A:C	10.0	10.0	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-27104

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-27104

https://www.accellion.com/products/fta/

Accellion FTA | Secure Large File Transfer for Enterprises
Product;Vendor Advisory

CVEs referencing this url
https://github.com/accellion/CVEs/blob/main/CVE-2021-27104.txt

CVEs/CVE-2021-27104.txt at main · accellion/CVEs · GitHub
Third Party Advisory