Multiple vulnerabilities in Microsoft SharePoint
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-1443 CVE-2019-1442 |
| CWE-ID | CWE-434 CWE-451 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Microsoft SharePoint Foundation Server applications / Application servers Microsoft SharePoint Server Server applications / Application servers |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Arbitrary file upload
EUVDB-ID: #VU22697
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-1443
CWE-ID:
CWE-434 - Unrestricted Upload of File with Dangerous Type
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the way SharePoint server handles file uploads. A remote authenticated user can upload a specially crafted file to the server and use it to obtain SMB hashes.
Install updates from vendor's website.
Vulnerable software versionsMicrosoft SharePoint Server: 2010 Service Pack 2 - 2013
Microsoft SharePoint Server: 2016 - 2019
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1443
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.
2) Spoofing attack
EUVDB-ID: #VU22696
Risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-1442
CWE-ID:
CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of certain URLs. A remote attacker can create a specially crafted file, force the victim into opening it and then trick a victim into entering credentials that can be obtained by the attacker.
Successful exploitation of the vulnerability may allow to conduct a phishing attack.
Install updates from vendor's website.
Vulnerable software versionsMicrosoft SharePoint Server: 2019
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1442
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.
