Nagios up to 4.4.1 Unix Socket qh_help null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Nagios up to 4.4.1. Impacted is the function qh_help of the component Unix Socket Handler. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2018-13441. An attack has to be approached locally. Furthermore, there is an exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nagios up to 4.4.1 (Log Management Software) and classified as problematic. This issue affects the function qh_help of the component Unix Socket Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

qh_help in Nagios Core version 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attacker to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.

The bug was discovered 07/11/2018. The weakness was shared 07/12/2018 (Website). It is possible to read the advisory at gist.github.com. The identification of this vulnerability is CVE-2018-13441 since 07/08/2018. Attacking locally is a requirement. Required for exploitation is a simple authentication. Technical details as well as a public exploit are known.

The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 121443 (Fedora 29 : nagios (2019-376ecc221c)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277645 (Fedora Security Update for nagios (FEDORA-2019-0b44528ff1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (45082), Tenable (121443) and SecurityFocus (BID 95121†). The entries VDB-121380, VDB-121381, VDB-122464 and VDB-123616 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121443
Nessus Name: Fedora 29 : nagios (2019-376ecc221c)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/22/2016 🔍
07/08/2018 +593 days 🔍
07/11/2018 +3 days 🔍
07/12/2018 +0 days 🔍
07/12/2018 +0 days 🔍
07/13/2018 +1 days 🔍
01/30/2019 +201 days 🔍
01/30/2019 +0 days 🔍
11/30/2024 +2131 days 🔍

Sourcesinfo

Advisory: FEDORA-2019-376ecc221c
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-13441 (🔍)
GCVE (CVE): GCVE-0-2018-13441
GCVE (VulDB): GCVE-100-121379
SecurityFocus: 95121 - Nagios CVE-2016-8641 Local Privilege Escalation Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/13/2018 09:09
Updated: 11/30/2024 05:39
Changes: 07/13/2018 09:09 (71), 03/04/2020 15:08 (13), 04/06/2023 21:47 (4), 11/30/2024 05:39 (15)
Complete: 🔍
Cache ID: 216:CE5:103

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