Prototype Pollution Vulnerability in 'extend' Module by Vendor
CVE-2018-16492

9.8CRITICAL

Key Information:

Vendor

Hackerone

Status
Vendor
CVE Published:
1 February 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-16492?

The 'extend' module versions prior to 2.0.2 and those less than 3.0.2 contain a vulnerability that permits attackers to inject arbitrary properties into Object.prototype. This type of prototype pollution can be exploited to manipulate the behavior of applications that rely on this module, potentially leading to severe security implications and unintended data exposure.

Affected Version(s)

extend < 2.0.2, ~<3.0.2

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.

References

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.