1) Input validation error

Severity: Medium

CVSSv3: 5.7 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-1187

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 insufficient validation of user-supplied XML input within the XmlLite runtime (XmlLite.dll). A remote attacker can issue a specially crafted request to an XML application and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903, RT 8.1

Windows Server: 2008, 2008 R2, 2012, 2012 R2, 2016, 2019, 2019 1803, 2019 1903

CPE

• cpe:/o:microsoft:windows:8.1:
• cpe:/o:microsoft:windows:7:
• cpe:/o:microsoft:windows:10:
• cpe:/o:microsoft:windows:RT 8.1:
• cpe:/o:microsoft:windows:10 1607:
• cpe:/o:microsoft:windows:10 1703:
• cpe:/o:microsoft:windows:10 1709:
• cpe:/o:microsoft:windows:10 1803:
• cpe:/o:microsoft:windows:10 1809:
• cpe:/o:microsoft:windows:10 1903:
• cpe:/o:microsoft:windows_server:2012:
• cpe:/o:microsoft:windows_server:2012 R2:
• cpe:/o:microsoft:windows_server:2008:
• cpe:/o:microsoft:windows_server:2008 R2:
• cpe:/o:microsoft:windows_server:2016:
• cpe:/o:microsoft:windows_server:2019:
• cpe:/o:microsoft:windows_server:2019 1803:
• cpe:/o:microsoft:windows_server:2019 1903:

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1187
https://www.zerodayinitiative.com/advisories/ZDI-19-710/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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