Privilege escalation in Microsoft Windows Defender Antimalware Platform
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-0835 |
| CWE-ID | CWE-65 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Windows Defender antimalware platform Client/Desktop applications / Antivirus software/Personal firewalls |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Windows Hard Link
EUVDB-ID: #VU26881
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-0835
CWE-ID:
CWE-65 - Windows hard link
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the Windows Defender antimalware platform improperly handles hard links. A local user can run a specially crafted application and overwrite a targeted file leading to an elevated status.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows Defender antimalware platform: 4.18.2001.111
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0835
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.
