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GHSA-446m-hmmm-hm8m

CriticalCVSS 9.8 / 10
Published May 24, 2023·Last modified Feb 16, 2024
Affected Components(0)

No affected components available

Description

Specific vulnerabilities:

  • Arbitrary file write in resource_create and package_update actions, using the ResourceUploader object. Also reachable via package_create, package_revise, and package_patch via calls to package_update.
  • Remote code execution via unsafe pickle loading, via Beaker's session store when configured to use the file session store backend.
  • Potential DOS due to lack of a length check on the resource id.
  • Information disclosure: A user with permission to create a resource can access any other resource on the system if they know the id, even if they don't have access to it.
  • Resource overwrite: A user with permission to create a resource can overwrite any resource if they know the id, even if they don't have access to it.

Impact

A user with permissions to create or edit a dataset can upload a resource with a specially crafted id to write the uploaded file in an arbitrary location. This can be leveraged to Remote Code Execution via Beaker's insecure pickle loading.

Patches

All the above listed vulnerabilities have been fixed in CKAN 2.9.9 and CKAN 2.10.1 The patches for CKAN 2.9 should apply easily to previous CKAN versions.

Risk Scores
Base Score
9.8

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
9.0

Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.

EPSS
1.68%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Critical severity
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