XML External Entity Injection Vulnerability in http4k for Kotlin Applications
CVE-2024-55875

9.8CRITICAL

Key Information:

Vendor

Http4k

Status
Http4k
Vendor
CVE Published:
12 December 2024

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2024-55875?

CVE-2024-55875 describes a serious security flaw in the http4k functional toolkit for Kotlin HTTP applications, specifically prior to version 5.41.0.0. This vulnerability arises from inadequate handling of XML data, allowing XML External Entity (XXE) injections. Exploiting this vulnerability could enable malicious actors to access sensitive data stored on the server, potentially leading to Server-side Request Forgery (SSRF) and, under certain circumstances, remote code execution. Users are strongly encouraged to upgrade to the patched version 5.41.0.0 to mitigate this critical risk.

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Deploy the Patch

Affected Version(s)

http4k < 5.41.0.0

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.

CVE-2024-55875
Created by JAckLosingHeart

References

https://github.com/http4k/http4k/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/http4k/http4k/commit/35297adc6d6aca495...
x_refsource_MISC
https://github.com/http4k/http4k/blob/25696dff2d90206cc1d...
x_refsource_MISC

EPSS Score

5% chance of being exploited in the next 30 days.

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

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