Icinga Web 2 up to 2.6.1 add Name code injection

Summaryinfo

A vulnerability marked as critical has been reported in Icinga Web 2 up to 2.6.1. This impacts an unknown function of the file /icingaweb2/navigation/add. The manipulation of the argument Name as part of Environment Variable leads to code injection. This vulnerability is uniquely identified as CVE-2018-18249. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Icinga Web 2 up to 2.6.1. This issue affects an unknown code of the file /icingaweb2/navigation/add. The manipulation of the argument name as part of a Environment Variable leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Icinga Web 2 before 2.6.2 allows injection of PHP ini-file directives via vectors involving environment variables as the channel to send information to the attacker, such as a name=${PATH}_${APACHE_RUN_DIR}_${APACHE_RUN_USER} parameter to /icingaweb2/navigation/add or /icingaweb2/dashboard/new-dashlet.

The bug was discovered 10/11/2018. The weakness was disclosed 12/17/2018 (Website). It is possible to read the advisory at herolab.usd.de. The identification of this vulnerability is CVE-2018-18249 since 10/11/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 67 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.6.2 eliminates this vulnerability.

The entry VDB-128028 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Icinga

Name

• Web 2

Version

• 2.6.0
• 2.6.1

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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