CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.6	$0-$5k	0.00

A vulnerability was found in Nagios up to 4.3.2 (Log Management Software). It has been rated as problematic. This issue affects an unknown code block of the file /pathname/nagios.lock`. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is availability. The summary by CVE is:

Nagios Core before 4.3.3 creates a nagios.lock PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for nagios.lock modification before a root script executes a "kill `cat /pathname/nagios.lock`" command.

The bug was discovered 07/29/2017. The weakness was disclosed 08/23/2017 (GitHub Repository). The advisory is shared at github.com. The identification of this vulnerability is CVE-2017-12847 since 08/14/2017. An attack has to be approached locally. The requirement for exploitation is a simple authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 25 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103913 (GLSA-201710-20 : Nagios: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277693 (Fedora Security Update for nagios (FEDORA-2017-d270e932a3)).

Upgrading to version 4.3.3 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (103913). The entries 94545, 94546, 99135 and 106412 are pretty similar.

Productinfo

Type

• Log Management Software

Name

• Nagios

Version

• 4.3.0
• 4.3.1
• 4.3.2

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.3
VulDB Temp Score: 2.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 103913
Nessus Name: GLSA-201710-20 : Nagios: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800068
OpenVAS Name: Nagios Privilege Escalation Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Nagios 4.3.3
Patch: github.com

Timelineinfo

07/29/2017 🔍
08/14/2017 +16 days 🔍
08/16/2017 +2 days 🔍
08/23/2017 +7 days 🔍
08/23/2017 +0 days 🔍
08/24/2017 +1 days 🔍
10/18/2017 +55 days 🔍
10/18/2017 +0 days 🔍
12/16/2022 +1885 days 🔍

Sourcesinfo

Advisory: 1b197346d490df2e2d3b1dcce5ac6134ad0c8752
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12847 (🔍)
SecurityFocus: 100403 - Nagios CVE-2017-12847 Local Privilege Escalation Vulnerability

See also: 🔍

Entryinfo

Created: 08/24/2017 09:21
Updated: 12/16/2022 12:53
Changes: 08/24/2017 09:21 (70), 11/09/2019 19:45 (11), 12/16/2022 12:53 (5)
Complete: 🔍

Discussion

Want to stay up to date on a daily basis?

Enable the mail alert feature now!