Vulnerability in Newtonsoft.Json Affects Denial of Service
CVE-2024-21907

7.5HIGH

Key Information:

Status
Vendor
CVE Published:
3 January 2024

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2024-21907?

Prior to version 13.0.1, Newtonsoft.Json is susceptible to a vulnerability related to improper handling of exceptional conditions. An unauthenticated remote attacker can exploit the JsonConvert.DeserializeObject method by passing carefully crafted data, potentially leading to a StackOverflow exception. This condition could disrupt service, creating a denial of service scenario based on the library's implementation. Developers utilizing this library should review their code to ensure they are using the latest version that patches this vulnerability.

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.

seal-security-nuget-demo-net7
Created by seal-sec-demo-2

References

https://github.com/JamesNK/Newtonsoft.Json/issues/2457
issue-tracking
https://github.com/JamesNK/Newtonsoft.Json/pull/2462
related
https://github.com/JamesNK/Newtonsoft.Json/commit/7e77bbe...
related

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

.