Information disclosure in Windows SymCrypt

Published: 2019-08-14 | Updated: 2019-08-14
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2019-1171
CWE ID CWE-310
Exploitation vector Local
Public exploit N/A
Vulnerable software Windows Subscribe
Windows Server
Vendor Microsoft

Security Advisory

This security advisory describes one low risk vulnerability.

1) Cryptographic issues

Severity: Low

CVSSv3: 2.2 [CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1171

CWE-ID: CWE-310 - Cryptographic Issues

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists in SymCrypt during the OAEP decryption stage. A local user can gain access to sensitive data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1703, 10 1709, 10 1803, 10 1809, 10 1903

Windows Server: 1803, 1903, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1171

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.