Summary
The SMB client uses a dedicated key type to request negotiated authentication credentials from a userspace helper, and the key description carries authority bearing fields such as process id, user id, credential user id, and the upcall target. The helper treats those fields as trustworthy because it assumes they were produced by the kernel. However, an ordinary userspace process can create keys of the same type directly through the key request and key add system calls, so it can populate those fields itself without the request ever originating from the file system client.
Products not listed in the Impact Details section have not been evaluated. Furthermore, products that have exceeded any software maintenance time periods are also not evaluated and will not be published. Please consult End of Sale and End of Service Life - Extreme Networks for the EOL notices related to the product under question.
Products Potentially Affected
None
Impact Details
|
OS/Product
|
Exposure
|
|
ExtremeAnalytics for Site Engine
|
Yes
|
|
ExtremeCloud IQ - Site Engine (XIQ-SE)
|
Yes
|
|
ExtremeControl for Site Engine
|
Yes
|
Repair Recommendations
ExtremeAnalytics for Site Engine:
- Fixed in 26.8.10 or later.
ExtremeCloud IQ - Site Engine (XIQ-SE):
- Fixed in 26.8.10 or later.
ExtremeControl for Site Engine:
- Fixed in 26.8.10 or later.
Please see the full Security Advisory here for more details and future updates.
