CKAN is an open-source data management system for powering data hubs and data portals. There are a number of CKAN plugins, including XLoader, DataPusher, Resource proxy and ckanext-archiver, that work by downloading the contents of local or remote files in order to perform some actions with their contents (e.g. pushing to the DataStore, streaming contents or saving a local copy). All of them use the resource URL, and there are currently no checks to limit what URLs can be requested. This means that a malicious (or unaware) user can create a resource with a URL pointing to a place where they should not have access in order for one of the previous tools to retrieve it (known as a Server Side Request Forgery). Users wanting to protect against these kinds of attacks can use one or a combination of the following approaches: (1) Use a separate HTTP proxy like Squid that can be used to allow / disallow IPs, domains etc as needed, and make CKAN extensions aware of this setting via the ckan.download_proxy config option. (2) Implement custom firewall rules to prevent access to restricted resources. (3) Use custom validators on the resource url field to block/allow certain domains or IPs. All latest versions of the plugins listed above support the ckan.download_proxy settings. Support for this setting in the Resource Proxy plugin was included in CKAN 2.10.5 and 2.11.0.
Metrics
Affected Vendors & Products
References
History
Fri, 23 Aug 2024 16:45:00 +0000
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First Time appeared |
Okfn
Okfn ckan |
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CPEs | cpe:2.3:a:okfn:ckan:*:*:*:*:*:*:*:* | |
Vendors & Products |
Okfn
Okfn ckan |
Thu, 22 Aug 2024 20:30:00 +0000
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Metrics |
ssvc
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Wed, 21 Aug 2024 15:00:00 +0000
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Description | CKAN is an open-source data management system for powering data hubs and data portals. There are a number of CKAN plugins, including XLoader, DataPusher, Resource proxy and ckanext-archiver, that work by downloading the contents of local or remote files in order to perform some actions with their contents (e.g. pushing to the DataStore, streaming contents or saving a local copy). All of them use the resource URL, and there are currently no checks to limit what URLs can be requested. This means that a malicious (or unaware) user can create a resource with a URL pointing to a place where they should not have access in order for one of the previous tools to retrieve it (known as a Server Side Request Forgery). Users wanting to protect against these kinds of attacks can use one or a combination of the following approaches: (1) Use a separate HTTP proxy like Squid that can be used to allow / disallow IPs, domains etc as needed, and make CKAN extensions aware of this setting via the ckan.download_proxy config option. (2) Implement custom firewall rules to prevent access to restricted resources. (3) Use custom validators on the resource url field to block/allow certain domains or IPs. All latest versions of the plugins listed above support the ckan.download_proxy settings. Support for this setting in the Resource Proxy plugin was included in CKAN 2.10.5 and 2.11.0. | |
Title | Potential access to sensitive URLs via CKAN extensions (SSRF) | |
Weaknesses | CWE-918 | |
References |
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Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-08-21T14:47:31.160Z
Updated: 2024-08-22T19:17:47.929Z
Reserved: 2024-08-09T14:23:55.513Z
Link: CVE-2024-43371
Vulnrichment
Updated: 2024-08-22T19:17:43.302Z
NVD
Status : Analyzed
Published: 2024-08-21T15:15:09.190
Modified: 2024-08-23T16:20:10.060
Link: CVE-2024-43371
Redhat
No data.