Nagios up to 2.3 integer coercion

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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Nagios. This impacts an unknown function. This manipulation causes integer coercion. This vulnerability is registered as CVE-2006-2489. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Nagios (Log Management Software) and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a integer coercion vulnerability. The CWE definition for the vulnerability is CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in CGI scripts in Nagios 1.x before 1.4.1 and 2.x before 2.3.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a content length (Content-Length) HTTP header. NOTE: this is a different vulnerability than CVE-2006-2162.

The bug was discovered 05/15/2006. The weakness was published 05/19/2006 by Sean with Debian (Website). The advisory is shared at secunia.com. This vulnerability is known as CVE-2006-2489 since 05/19/2006. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 21612 (Ubuntu 5.04 / 5.10 : nagios vulnerability (USN-287-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38546 (Nagios Content-Length Integer Overflow Vulnerability).

Upgrading to version 1.x eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (26454), Tenable (21612), SecurityFocus (BID 18059†), OSVDB (25543†) and Secunia (SA20123†). Similar entry is available at VDB-30029. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Log Management Software

Name

• Nagios

Version

• 1.0
• 1.0b1
• 1.0b2
• 1.0b3
• 1.0b4
• 1.0b5
• 1.0b6
• 1.1
• 1.2
• 1.3
• 1.4
• 2.0
• 2.0b1
• 2.0b2
• 2.0b3
• 2.0b4
• 2.0b5
• 2.0b6
• 2.0rc1
• 2.0rc2
• 2.1
• 2.2
• 2.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Integer coercion
CWE: CWE-192 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 21612
Nessus Name: Ubuntu 5.04 / 5.10 : nagios vulnerability (USN-287-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56790
OpenVAS Name: Debian Security Advisory DSA 1072-1 (nagios)
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 1.x

Timelineinfo

05/15/2006 🔍
05/19/2006 +4 days 🔍
05/19/2006 +0 days 🔍
05/19/2006 +0 days 🔍
05/19/2006 +0 days 🔍
05/22/2006 +3 days 🔍
05/29/2006 +7 days 🔍
05/29/2006 +0 days 🔍
05/29/2006 +0 days 🔍
03/12/2015 +3209 days 🔍
06/22/2025 +3754 days 🔍

Sourcesinfo

Advisory: secunia.com⛔
Researcher: Sean
Organization: Debian
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-2489 (🔍)
GCVE (CVE): GCVE-0-2006-2489
GCVE (VulDB): GCVE-100-30325
X-Force: 26454
SecurityFocus: 18059 - Nagios Remote Content-Length Integer Overflow Vulnerability
Secunia: 20123
OSVDB: 25543 - Nagios - Remote Content-Length Integer Overflow Issue
Vulnerability Center: 11684 - Nagios Integer Overflow in CGI Scripts via a Content-Length HTTP Header, High
Vupen: ADV-2006-1822

See also: 🔍

Entryinfo

Created: 03/12/2015 12:19
Updated: 06/22/2025 00:15
Changes: 03/12/2015 12:19 (76), 06/19/2019 15:39 (7), 06/22/2025 00:15 (20)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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