Stack-based buffer overflow in the cmd_submitf function in cgi/cmd.c in Nagios Core, possibly 4.0.3rc1 and earlier, and Icinga before 1.8.6, 1.9 before 1.9.5, and 1.10 before 1.10.3 allows remote attackers to cause a denial of service (segmentation fault) via a long message to cmd.cgi.

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.

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.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple off-by-one errors in Nagios Core 3.5.1, 4.0.2, and earlier, and Icinga before 1.8.5, 1.9 before 1.9.4, and 1.10 before 1.10.2 allow remote authenticated users to obtain sensitive information from process memory or cause a denial of service (crash) via a long string in the last key value in the variable list to the process_cgivars function in (1) avail.c, (2) cmd.c, (3) config.c, (4) extinfo.c, (5) histogram.c, (6) notifications.c, (7) outages.c, (8) status.c, (9) statusmap.c, (10) summary.c, and (11) trends.c in cgi/, which triggers a heap-based buffer over-read.

Stack-based buffer overflow in the cmd_submitf function in cgi/cmd.c in Nagios Core, possibly 4.0.3rc1 and earlier, and Icinga before 1.8.6, 1.9 before 1.9.5, and 1.10 before 1.10.3 allows remote attackers to cause a denial of service (segmentation fault) via a long message to cmd.cgi.

Various command-execution flaws were found in the Snoopy library included with Nagios. These flaws allowed remote attackers to execute arbitrary commands by manipulating Nagios HTTP headers.

A privilege escalation flaw was found in the way Nagios handled log files. An attacker able to control the Nagios logging configuration (the 'nagios' user/group) could use this flaw to elevate their privileges to root.

Off-by-one error in the process_cgivars function in contrib/daemonchk.c in Nagios Core 3.5.1, 4.0.2, and earlier allows remote authenticated users to obtain sensitive information from process memory or cause a denial of service (crash) via a long string in the last key value in the variable list, which triggers a heap-based buffer over-read.

rss-newsfeed.php in Nagios Core 3.4.4, 3.5.1, and earlier, when MAGPIE_CACHE_ON is set to 1, allows local users to overwrite arbitrary files via a symlink attack on /tmp/magpie_cache.

The _httpsrequest function (Snoopy/Snoopy.class.php) in Snoopy 1.2.3 and earlier, as used in (1) ampache, (2) libphp-snoopy, (3) mahara, (4) mediamate, (5) opendb, (6) pixelpost, and possibly other products, allows remote attackers to execute arbitrary commands via shell metacharacters in https URLs.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3253-1 advisory.

    It was discovered that Nagios incorrectly handled certain long strings. A remote authenticated attacker     could use this issue to cause Nagios to crash, resulting in a denial of service, or possibly obtain     sensitive information. (CVE-2013-7108, CVE-2013-7205)

    It was discovered that Nagios incorrectly handled certain long messages to cmd.cgi. A remote attacker     could possibly use this issue to cause Nagios to crash, resulting in a denial of service. (CVE-2014-1878)

    Dawid Golunski discovered that Nagios incorrectly handled symlinks when accessing log files. A local     attacker could possibly use this issue to elevate privileges. In the default installation of Ubuntu, this     should be prevented by the Yama link restrictions. (CVE-2016-9566)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

A stack-based buffer overflow in the cmd_submitf function in cgi/cmd.c in Nagios, a monitoring and management system for hosts, services and networks, allowed remote attackers to cause a denial of service (segmentation fault) via a long message to cmd.cgi.

For Debian 7 'Wheezy', this problem has been fixed in version 3.4.1-3+deb7u2.

We recommend that you upgrade your nagios3 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Two fixes for the Classic UI :

  - fix off-by-one memory access in process_cgivars()     (CVE-2013-7108)

  - prevent possible buffer overflows in cmd.cgi     (CVE-2014-1878)

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Nagios was updated to fix a stack-based buffer overflow in the cmd_submitf function in the CGI handler. (CVE-2014-1878)

Multiple security issues have been found in the Icinga host and network monitoring system (buffer overflows, cross-site request forgery, off-by ones) which could result in the execution of arbitrary code, denial of service or session hijacking.

Updated nagios packages fix security vulnerability :

Stack-based buffer overflow in the cmd_submitf function in cgi/cmd.c in Nagios Core, possibly 4.0.3rc1 and earlier, and Icinga before 1.8.6, 1.9 before 1.9.5, and 1.10 before 1.10.3 allows remote attackers to cause a denial of service (segmentation fault) via a long message to cmd.cgi (CVE-2014-1878).

The monitoring service Nagios has been updated to fix potential buffer overflows in its CGI scripts. (CVE-2014-1878)

ID	Name	Product	Family	Severity
119875	Debian DLA-1615-1 : nagios3 security update	Nessus	Debian Local Security Checks	high
103651	Amazon Linux AMI : nagios (ALAS-2017-899)	Nessus	Amazon Linux Local Security Checks	critical
99182	Ubuntu 14.04 LTS / 16.04 LTS : Nagios vulnerabilities (USN-3253-1)	Nessus	Ubuntu Local Security Checks	high
90945	Debian DLA-461-1 : nagios3 security update	Nessus	Debian Local Security Checks	medium
82205	Debian DLA-60-1 : icinga security update	Nessus	Debian Local Security Checks	medium
75321	openSUSE Security Update : nagios (openSUSE-SU-2014:0516-1)	Nessus	SuSE Local Security Checks	medium
74477	Debian DSA-2956-1 : icinga - security update	Nessus	Debian Local Security Checks	medium
74068	Mandriva Linux Security Advisory : nagios (MDVSA-2014:089)	Nessus	Mandriva Local Security Checks	medium
73707	SuSE 11.3 Security Update : nagios (SAT Patch Number 9071)	Nessus	SuSE Local Security Checks	medium

Detections

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CVE-2014-1878

high

Tenable Plugins

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critical

high

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medium

medium

medium

medium

medium