Microsoft Internet Explorer MHT File permission

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$0-$5k	0.00

A vulnerability classified as critical was found in Microsoft Internet Explorer (Web Browser) (the affected version is unknown). This vulnerability affects an unknown code of the component MHT File Handler. The manipulation with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 12/06/2021. The advisory is available at hyp3rlinx.altervista.org. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

It is possible to download the exploit at hyp3rlinx.altervista.org. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

The problem might be mitigated by replacing the product with as an alternative.

The entries VDB-90853 and VDB-133377 are related to this item.

Productinfo

Type

Web Browser

Vendor

Microsoft

Name

Internet Explorer

License

commercial

Support

end of life

CPE 2.3info

🔍

CPE 2.2info

🔍

Video

Open video | Show more videos

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.3
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Alternative
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2021 🔍
12/06/2021 +0 days 🔍
12/06/2021 +0 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: hyp3rlinx.altervista.org
Status: Not defined
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/06/2021 07:16
Changes: 12/06/2021 07:16 (41)
Complete: 🔍
Submitter: hyp3rlinx
Cache ID: 13:BFB:103

Submitinfo

Accepted

Submit #25155: Microsoft Internet Explorer (MSIE) / ActiveX Control Security Bypass (by hyp3rlinx)