CVE-2019-3999

EPSS 8.6%

Vexday Risk Score

38Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Functional exploit

Automatable exploit available (Nuclei/Metasploit).

CVSS —EPSS 8.6%KEV nãoPoC públicaNuclei —Metasploit simPatch —

Lifecycle

25 Feb 2020Metasploit module available

25 Feb 2020Published on NVD

29 Apr 2020Public PoC

Weaponization speed

63 daysto first PoC

Recommendation: Plan a near-term fix — a public PoC already exists.

Improper neutralization of special elements used in an OS command in Druva inSync Windows Client 6.5.0 allows a local, unauthenticated attacker to execute arbitrary operating system commands with SYSTEM privileges.

Affected products

n/a · Druva inSync Windows Client

public PoCs found — 3

cve_referencepacketstormsecurity.com/files/157493/Druva-inSync-Windows-Client-6.5.2-Privilege-Escalation.htmlunverified cve_referencepacketstormsecurity.com/files/157680/Druva-inSync-inSyncCPHwnet64.exe-RPC-Type-5-Privilege-Escalation.htmlunverified exploitdbwww.exploit-db.com/exploits/48400unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

http://packetstormsecurity.com/files/157493/Druva-inSync-Windows-Client-6.5.2-Privilege-Escalation.html http://packetstormsecurity.com/files/157680/Druva-inSync-inSyncCPHwnet64.exe-RPC-Type-5-Privilege-Escalation.html https://www.tenable.com/security/research/tra-2020-12