CVE-2020-1380
Microsoft Internet Explorer: Scripting Engine Memory Corruption
As of , CVE-2020-1380 in Microsoft Internet Explorer is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.
- Exploited
- Yes: CISA listed it on 3 November 2021
- US federal deadline
- 3 May 2022181 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.24Higher than 97% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- Not availableCISA listed it before 4 February 2022, where the EPSS files we read begin.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
Microsoft Internet Explorer contains a memory corruption vulnerability which can allow for remote code execution in the context of the current user.
CISA's description
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. 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. 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. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.
The CVE record's description, from microsoft
- CVE published
- 17 August 2020
- Assigned by
- microsoft
- CVSS
- 7.8 High (CVSS 3.1, from the CNA)
- CWE-787
- Out-of-bounds Write
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Internet Explorer: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2010-0249Use-After-Free | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.92; verified Exploit-DB entry | 0.92 | ||
| CVE-2010-0806Use-After-Free | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.82; verified Exploit-DB entry | 0.82 | ||
| CVE-2010-3962Uninitialized Memory Corruption | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.97; verified Exploit-DB entry | 0.97 | ||
| CVE-2013-3893Resource Management Errors | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.88; verified Exploit-DB entry | 0.88 | ||
| CVE-2012-4792Use-After-Free | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.79; verified Exploit-DB entry | 0.79 | ||
| CVE-2013-3163Memory Corruption | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.71; verified Exploit-DB entry | 0.71 | ||
| CVE-2012-4969Use-After-Free | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.80; verified Exploit-DB entry | 0.80 | ||
| CVE-2014-0322Use-After-Free | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.85; verified Exploit-DB entry | 0.85 | ||
| CVE-2013-2551Use-After-Free | Microsoft Internet Explorer | Patch this weekRansomware use; Metasploit module; EPSS 0.74; verified Exploit-DB entry | 0.74 | ||
| CVE-2013-1347Remote Code Execution | Microsoft Internet Explorer | Patch this weekMetasploit module; EPSS 0.78; verified Exploit-DB entry | 0.78 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org