NULL Pointer Dereference Vulnerability in Nagios Core by Nagios Enterprises
CVE-2018-13458

5.5MEDIUM

Key Information:

Vendor

Nagios

Status
Nagios Core
Vendor
CVE Published:
12 July 2018

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-13458?

A NULL pointer dereference vulnerability exists in the qh_core component of Nagios Core versions 4.4.1 and earlier. When an attacker sends a specially crafted payload to the UNIX socket that Nagios Core listens on, it can lead to a local denial-of-service condition, effectively causing the service to become unresponsive. This vulnerability highlights the need for stringent input validation and the importance of applying security patches promptly to mitigate potential exploitation risks.

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-2018-13458 - Proof of Concept

References

https://knowledge.opsview.com/v5.4/docs/whats-new
x_refsource_CONFIRM
https://gist.github.com/fakhrizulkifli/40f3daf52950cca6de...
x_refsource_MISC
https://www.exploit-db.com/exploits/45082/
exploitx_refsource_EXPLOIT-DB

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.