Elevation of Privilege Vulnerability in Microsoft Edge Browser
CVE-2020-1056

5.4MEDIUM

Key Information:

Vendor

Microsoft
Status
Microsoft Edge (edgehtml-based)
Vendor
CVE Published:
21 May 2020

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-1056?

An elevation of privilege vulnerability in Microsoft Edge arises from improper enforcement of cross-domain policies. This flaw could allow an attacker to obtain sensitive information from one domain and inject it into another, potentially compromising users' security. If exploited through a maliciously crafted website, this vulnerability enables attackers to perform unauthorized actions, increasing the risk of data exposure and manipulation.

Affected Version(s)

Microsoft Edge (EdgeHTML-based) Windows 10 Version 1607 for 32-bit Systems 1.0..0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

POC-CVE-2020-1056
Created by PierreAdams

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.