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.
References
Link | Resource |
---|---|
https://know.bishopfox.com/advisories | Third Party Advisory |
https://www.crn.com/slide-shows/managed-services/connectwise-control-attack-chain-exploit-20-questions-for-security-researcher-bishop-fox | Third Party Advisory |
https://know.bishopfox.com/advisories/connectwise-control | Exploit Third Party Advisory |
https://www.crn.com/news/managed-services/connectwise-control-msp-security-vulnerabilities-are-severe-bishop-fox | Third Party Advisory |
https://blog.huntresslabs.com/validating-the-bishop-fox-findings-in-connectwise-control-9155eec36a34 | Exploit Third Party Advisory |
Configurations
Information
Published : 2020-01-23 10:15
Updated : 2020-01-28 13:49
NVD link : CVE-2019-16517
Mitre link : CVE-2019-16517
JSON object : View
CWE
CWE-346
Origin Validation Error
Products Affected
connectwise
- control