Overview
Chef Manage add-on, version 1.11.4 and earlier, deserializes cookie data insecurely, which may be leveraged to gain unauthenticated remote code execution.
Description
CWE-502: Deserialization of Untrusted Data - CVE-2016-4326 Chef with the Chef Manage (previously known as 'opscode-manage') add-on enabled deserializes user-provided cookie data without properly validating it first. An unauthenticated attacker can provide specially crafted cookie data that, when deserialized, results in the execution of arbitrary code with the web server's privileges. |
Impact
A remote, unauthenticated attacker can provide specially crafted cookie data that, when deserialized, will execute arbitrary code with the privileges of the web server. |
Solution
Apply an update |
Vendor Information
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | 10 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| Temporal | 7.8 | E:POC/RL:OF/RC:C |
| Environmental | 5.9 | CDP:ND/TD:M/CR:ND/IR:ND/AR:ND |
References
Acknowledgements
Thanks to Henrik Ferdinand Nölscher of Code-White GmbH for reporting this vulnerability.
This document was written by Joel Land.
Other Information
| CVE IDs: | CVE-2016-4326 |
| Date Public: | 2016-05-17 |
| Date First Published: | 2016-05-17 |
| Date Last Updated: | 2016-05-17 14:07 UTC |
| Document Revision: | 16 |