Privilege escalation in Dropbox for Windows
| Risk | Low |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | N/A |
| CWE-ID | CWE-276 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Dropbox for Windows Client/Desktop applications / File managers, FTP clients |
| Vendor | Dropbox |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Incorrect default permissions
EUVDB-ID: #VU23810
Risk: Low
CVSSv3.1: 8.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:U/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-276 - Incorrect Default Permissions
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions for files and folders that are set by DropBoxUpdater service. A local user with access to the system can view contents of files and directories or modify them. Successful exploitation of the vulnerability may allow an attacker to gain elevated privilege on the system.
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsDropbox for Windows: 25.4.28 - 87.4.138
External linkshttp://decoder.cloud/2019/12/18/from-dropboxupdater-to-nt-authoritysystem/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
