CVE-2020-1057 Scripting Engine Memory Corruption Vulnerability
Remote code execution via memory corruption in ChakraCore allows attackers to execute arbitrary code and potentially gain administrative privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-1057?
CVE-2020-1057 is a medium-severity memory corruption vulnerability in Microsoft Chakracore, published on 11 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
<p>A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user.</p> <p>If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>The security update addresses the vulnerability by modifying how the ChakraCore scripting engine handles objects in memory.</p>
Weakness: CWE-787
Which versions are affected by CVE-2020-1057?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.11.22 |
Microsoft.ChakraCore NuGet | All versions | 1.11.22 |
Products include Microsoft Chakracore, Microsoft Edge.
How do I fix CVE-2020-1057?
Upgrade Microsoft.ChakraCore to 1.11.22 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-1057 being exploited?
There is no known exploitation of CVE-2020-1057 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Chakracore
Sources
Also known as GHSA-9f8c-f7h4-xghf.