Multiple vulnerabilities in Microsoft OneDrive for Windows
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2020-16851 CVE-2020-16852 CVE-2020-16853 |
| CWE-ID | CWE-61 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
OneDrive for Windows Client/Desktop applications / Software for archiving |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) UNIX symbolic link following
EUVDB-ID: #VU46461
Risk: Low
CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16851
CWE-ID:
CWE-61 - UNIX Symbolic Link (Symlink) Following
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the OneDrive for Windows Desktop application improperly handles symbolic links. A local user can run a specially crafted application and delete a targeted file with an elevated status. .
Successful exploitation of this vulnerability may result in privilege escalation.
MitigationInstall update from vendor's website.
Vulnerable software versionsOneDrive for Windows: before 20.143.0716.0003
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16851
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.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted archive.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) UNIX symbolic link following
EUVDB-ID: #VU46462
Risk: Low
CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16852
CWE-ID:
CWE-61 - UNIX Symbolic Link (Symlink) Following
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the OneDrive for Windows Desktop application improperly handles symbolic links. A local user can run a specially crafted application and delete a targeted file with an elevated status. .
Successful exploitation of this vulnerability may result in privilege escalation.
MitigationInstall update from vendor's website.
Vulnerable software versionsOneDrive for Windows: before 20.143.0716.0003
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16852
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.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted archive.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) UNIX symbolic link following
EUVDB-ID: #VU46463
Risk: Low
CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16853
CWE-ID:
CWE-61 - UNIX Symbolic Link (Symlink) Following
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the OneDrive for Windows Desktop application improperly handles symbolic links. A local user can run a specially crafted application and delete a targeted file with an elevated status. .
Successful exploitation of this vulnerability may result in privilege escalation.
MitigationInstall update from vendor's website.
Vulnerable software versionsOneDrive for Windows: before 20.143.0716.0003
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16853
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.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted archive.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
