CVE-2019-14510
Using the well known Pass-the-Hash techniques, an attacker can use the same FSAdminxxxxxxxxx hash from any LAN Cache client and pass this to a Domain Controller, providing administrative rights to the attacker on any Domain Controller.
Does this matter?
Lower severity and a low EPSS score (0.53%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Kaseya VSA RMM through 9.5.0.22. When using the default configuration, the LAN Cache feature creates a local account FSAdminxxxxxxxxx (e.g., FSAdmin123456789) on the server that hosts the LAN Cache and all clients that are assigned to a LAN Cache. This account is placed into the local Administrators group of all clients assigned to the LAN Cache. When the assigned client is a Domain Controller, the FSAdminxxxxxxxxx account is created as a domain account and automatically added as a member of the domain BUILTIN\Administrators group. Using the well known Pass-the-Hash techniques, an attacker can use the same FSAdminxxxxxxxxx hash from any LAN Cache client and pass this to a Domain Controller, providing administrative rights to the attacker on any Domain Controller. (Local account Pass-the-Hash mitigations do not protect domain accounts.)
- CVSS 3.1
- 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-276, CWE-287
- Affected
- kaseya/vsa
- Source
- cve@mitre.org
References
- http://community.kaseya.com/xsp/f/355.aspxRelease Notes
- http://community.kaseya.com/xsp/f/355/t/24675.aspxRelease Notes
- https://lockstepgroup.com/blog/abusing-the-kaseya-lan-cache-fsadmin/Exploit, Third Party Advisory
- https://lockstepgroup.com/blog/cve-2019-14510-abusing-the-kaseya-lan-cache-fsadmin-red-team-edition/Exploit, Third Party Advisory
- https://www.kaseya.com/products/vsa/Product
- http://community.kaseya.com/xsp/f/355.aspxRelease Notes
- http://community.kaseya.com/xsp/f/355/t/24675.aspxRelease Notes
- https://lockstepgroup.com/blog/abusing-the-kaseya-lan-cache-fsadmin/Exploit, Third Party Advisory
- https://lockstepgroup.com/blog/cve-2019-14510-abusing-the-kaseya-lan-cache-fsadmin-red-team-edition/Exploit, Third Party Advisory
- https://www.kaseya.com/products/vsa/Product
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.