Spoofing attack in Microsoft Windows MSHTML Platform and Internet Explorer

1) Universal cross-site scripting

EUVDB-ID: #VU98154

Risk: Medium

CVSSv3.1: 6.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2024-43573

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 11 - 11.1790.17763.0

Windows: before 11 24H2 10.0.26100.2033

Windows Server: before 2022 23H2 10.0.25398.1189

CPE2.3

• cpe:2.3:a:microsoft:microsoft_internet_explorer:11.0.22621.3958:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_internet_explorer:11.0.19041.4412:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_internet_explorer:11.0.19041.4522:*:*:*:*:*:*:*

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2024-43573

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.