Critical severity · published Feb 16, 2021
CVE-2021-27104
Accellion FTA OS Command Injection Vulnerability
RansomwareIn wildKEV
9.8
CVSS
56.7%
EPSS
Yes
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)56.7% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueNov 17, 2021
Ransomware campaign useKnown
Affected products
Which versions
FT
FTA · Accellion
through 9_12_370 · source: NVD, KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27104
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27104
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://www.accellion.com/products/fta/
x_refsource_MISC
https://github.com/accellion/CVEs/blob/main/CVE-2021-27104.txt
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CVE-2021-27103
Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability
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CVE-2021-27101
Accellion FTA SQL Injection Vulnerability
7.8
CVE-2021-27102
Accellion FTA OS Command Injection Vulnerability
9.8
CVE-2021-27730
Accellion FTA 9_12_432 and earlier is affected by argument injection via a crafted POST request to an admin endpoint
6.1
CVE-2021-27731
Accellion FTA 9_12_432 and earlier is affected by stored XSS via a crafted POST request to a user endpoint