Show vulnerabilities with patch / with exploit

Multiple vulnerabilities in Microsoft ASP.NET Core



Published: 2020-01-14
Severity High
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2020-0602
CVE-2020-0603
CWE ID CWE-20
CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
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ASP.NET Core MVC
Universal components / Libraries / Software for developers

Vendor Microsoft

Security Advisory

1) Input validation error

Severity: Medium

CVSSv3: 6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-0602

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the ASP.NET Core improperly handles web requests. A remote attacker can send a specially crafted request and cause a denial of service condition on the ASP.NET Core web application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ASP.NET Core MVC: 2.1.0, 3.0, 3.1

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0602

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write

Severity: High

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-0603

CWE-ID: CWE-787 - Out-of-bounds Write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the ASP.NET Core. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ASP.NET Core MVC: 2.1.0, 3.0, 3.1

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0603

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.