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Debian LTS Advisory ([SECURITY] [DLA 1615-1] nagios3 security update)

Information

Severity

Severity

High

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.2

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

5 years ago

Summary

Several issues were corrected in nagios3, a monitoring and management system for hosts, services and networks. CVE-2018-18245 Maximilian Boehner of usd AG found a cross-site scripting (XSS) vulnerability in Nagios Core. This vulnerability allows attackers to place malicious JavaScript code into the web frontend through manipulation of plugin output. In order to do this the attacker needs to be able to manipulate the output returned by nagios checks, e.g. by replacing a plugin on one of the monitored endpoints. Execution of the payload then requires that an authenticated user creates an alert summary report which contains the corresponding output. CVE-2016-9566 It was discovered that local users with access to an account in the nagios group are able to gain root privileges via a symlink attack on the debug log file. CVE-2014-1878 An issue was corrected that allowed remote attackers to cause a stack-based buffer overflow and subsequently a denial of service (segmentation fault) via a long message to cmd.cgi. CVE-2013-7205, CVE-2013-7108 A flaw was corrected in Nagios that could be exploited to cause a denial-of-service. This vulnerability is induced due to an off-by-one error within the process_cgivars() function, which can be exploited to cause an out-of-bounds read by sending a specially-crafted key value to the Nagios web UI.

Affected Software

Affected Software

nagios3 on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For Debian 8 'Jessie', these problems have been fixed in version 3.5.1.dfsg-2+deb8u1. We recommend that you upgrade your nagios3 packages.

Common Vulnerabilities and Exposures (CVE)