CVE-2019-16517

An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a CORS misconfiguration, which reflected the Origin provided by incoming requests. This allowed JavaScript running on any domain to interact with the server APIs and perform administrative actions, without the victim's knowledge.

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.34% chance of exploitation in the next 30 days, 69th percentile

Published

2020-01-23

Updated

2024-08-05

Proof-of-concept exploits (2)

• https://know.bishopfox.com/advisories/connectwise-control
• https://www.crn.com/slide-shows/managed-services/connectwise-control-attack-chain-exploit…

References

• CVE Record
• NVD entry

Related

• CVE-2019-16516
• CVE-2019-1652
• CVE-2019-16515
• CVE-2019-16520
• CVE-2019-16514
• CVE-2019-16521