CVE-2019-1171 SymCrypt Information Disclosure Vulnerability
An attacker with local access can exploit an OAEP decryption flaw in SymCrypt to disclose sensitive information, potentially aiding further system compromise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1171?
CVE-2019-1171 is a medium-severity vulnerability in Microsoft Windows 10, published on 14 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An information disclosure vulnerability exists in SymCrypt during the OAEP decryption stage. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. The update addresses the vulnerability through a software change to the OAEP decoding operations.
Weakness: CWE-200
Which versions are affected by CVE-2019-1171?
It affects 3 products.
Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.
How do I fix CVE-2019-1171?
No fix has been published for CVE-2019-1171 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1171 being exploited?
There is no known exploitation of CVE-2019-1171 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-rj3p-cfqw-qm73.