Critical severity · published Mar 23, 2022
CVE-2021-27462
A deserialization vulnerability exists in how the AosService.rem service in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier verifies serialized data
9.8
CVSS
3.8%
EPSS
No
On KEV
Description
A deserialization vulnerability exists in how the AosService.rem service in Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier verifies serialized data. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary commands in FactoryTalk AssetCentre.
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)3.8% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
Factorytalk Assetcentre · Rockwellautomation
through 10.00 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27462
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27462
Permissions Required
https://idp.rockwellautomation.com/adfs/ls/idpinitiatedsignon.aspx?RelayState=RPID%3Drockwellautomation.custhelp.com%26RelayState%3Danswers%2Fanswer_view%2Fa_id%2F1130831
Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-091-01
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