Privilege escalation in Microsoft ASP.NET and .NET
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-1476 |
| CWE-ID | CWE-264 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Microsoft .NET Framework Server applications / Frameworks for developing and running applications |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU45631
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-2020-1476
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to ASP.NET or .NET web applications running on IIS improperly allow access to cached files. A local user can send a specially crafted request and gain elevated privileges on the target system.
MitigationInstall update from vendor's website.
Vulnerable software versionsMicrosoft .NET Framework: 2.0 - 4.8
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1476
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.
