CVE-2020-5752 : Relative path traversal in Druva inSync Windows Client 6.6.3 allows a local, una

Relative path traversal in Druva inSync Windows Client 6.6.3 allows a local, unauthenticated attacker to execute arbitrary operating system commands with SYSTEM privileges.

Published 2020-05-21 15:15:10

Updated 2022-11-29 02:16:51

Source Tenable Network Security, Inc.

View at NVD, CVE.org

Vulnerability category: Directory traversal

Products affected by CVE-2020-5752

Druva » Insync Client » Version: 6.6.3 For Windows
cpe:2.3:a:druva:insync_client:6.6.3:*:*:*:*:windows:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-5752

EPSS FAQ

17.22%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 94 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2020-5752

Druva inSync inSyncCPHwnet64.exe RPC Type 5 Privilege Escalation

Disclosure Date: 2020-02-25

First seen: 2020-05-14

exploit/windows/local/druva_insync_insynccphwnet64_rcp_type_5_priv_esc

Druva inSync client for Windows exposes a network service on TCP port 6064 on the local network interface. inSync versions 6.6.3 and prior do not properly validate user-supplied program paths in RPC type 5 messages, allowing execution of arbitrary com

More information

CVSS scores for CVE-2020-5752

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.2	HIGH	AV:L/AC:L/Au:N/C:C/I:C/A:C	3.9	10.0	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-5752

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-5752

http://packetstormsecurity.com/files/160404/Druva-inSync-Windows-Client-6.6.3-Privilege-Escalation.html

Exploit;Third Party Advisory;VDB Entry
https://www.tenable.com/security/research/tra-2020-34

Druva inSync Windows Client Local Privilege Escalation (CVE-2019-3999 Patch Bypass) - Research Advisory | Tenable®
Exploit;Release Notes;Third Party Advisory
http://packetstormsecurity.com/files/157802/Druva-inSync-Windows-Client-6.6.3-Local-Privilege-Escalation.html

Druva inSync Windows Client 6.6.3 Local Privilege Escalation ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry

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