Apache Karaf up to 4.2.4 Config Service path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apache Karaf up to 4.2.4. This affects an unknown function of the component Config Service. This manipulation causes path traversal. This vulnerability is tracked as CVE-2019-0226. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apache Karaf up to 4.2.4 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Config Service. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Apache Karaf Config service provides a install method (via service or MBean) that could be used to travel in any directory and overwrite existing file. The vulnerability is low if the Karaf process user has limited permission on the filesystem. Any Apache Karaf version before 4.2.5 is impacted. User should upgrade to Apache Karaf 4.2.5 or later.

The bug was discovered 05/06/2019. The weakness was disclosed 05/09/2019 (Website). It is possible to read the advisory at lists.apache.org. This vulnerability is known as CVE-2019-0226 since 11/14/2018. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation needs a single authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 4.2.5 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Apache

Name

• Karaf

Version

• 4.2.0
• 4.2.1
• 4.2.2
• 4.2.3
• 4.2.4

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion