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CVE-2020-0674 PoC — Microsoft Internet Explorer 资源管理错误漏洞

Source
Associated Vulnerability
Title:Microsoft Internet Explorer 资源管理错误漏洞 (CVE-2020-0674)
Description:A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0673, CVE-2020-0710, CVE-2020-0711, CVE-2020-0712, CVE-2020-0713, CVE-2020-0767.
Description
Info about CVE-2020-0674
Readme
## Test Internet Explorer on CVE-2020-0674

If you can see the text: `jscript.dll says hello` on this page:
https://binaryfigments.github.io/CVE-2020-0674/

Then you can be vulnerable the this attack. You will see the following screen.

![jscript.png](https://raw.githubusercontent.com/binaryfigments/CVE-2020-0674/master/jscript.png "jscript.dll")

Mitigation steps from [Microsoft's advisory](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200001)

For 32-bit systems, enter the following command at an administrative command prompt:

```shell
takeown /f %windir%\system32\jscript.dll
cacls %windir%\system32\jscript.dll /E /P everyone:N
```

For 64-bit systems, enter the following command at an administrative command prompt:

```shell
takeown /f %windir%\syswow64\jscript.dll
cacls %windir%\syswow64\jscript.dll /E /P everyone:N
takeown /f %windir%\system32\jscript.dll
cacls %windir%\system32\jscript.dll /E /P everyone:N
```

### Links

* https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200001
* https://www.kryptoslogic.com/blog/2020/01/rdp-to-rce-when-fragmentation-goes-wrong/ 
* https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0674 
* https://techcrunch.com/2020/01/18/internet-explorer-security-flaw/ 
* https://kb.cert.org/vuls/id/338824/ 
* https://www.us-cert.gov/ncas/current-activity/2020/01/17/microsoft-releases-security-advisory-internet-explorer 
* https://securityaffairs.co/wordpress/96560/hacking/cve-2020-0674-ie-0day.html 
* https://www.ncsc.nl/actueel/advisory?id=NCSC-2020-0056 
File Snapshot

[4.0K] /data/pocs/f29d75e300af85c27e8eb83f31d47a0b9894e64f ├── [4.0K] docs │   ├── [ 160] index.html │   └── [ 14K] jscript.png ├── [ 14K] jscript.png ├── [1.0K] LICENSE └── [1.5K] README.md 1 directory, 5 files
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