Azure CycleCloud Elevation of Privilege Vulnerability

Source data

Overview

Missing authorization in Azure CycleCloud allows an authorized attacker to elevate privileges over a network.

Impact & technical details

Elevation of Privilege

What do I need to do to protect myself? Customers should update to Azure CycleCloud 8.9.1 (Build 8.9.1-3806), which includes the fix for this vulnerability. New installations and upgrades to an existing CycleCloud deployment will receive the updated packages containing the fix. For installation and upgrade guidance, see: Install CycleCloud Upgrade an existing CycleCloud installation Updated packages are available through Microsoft's package repositories and the Azure Marketplace image for CycleCloud 8.9.1.

What privileges could be gained by an attacker who successfully exploited the vulnerability? A low-privilege attacker who successfully exploits the vulnerability could potentially elevate their privileges to perform unauthorized modification of another user's cluster.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N) and availability (A:L), but could lead to major loss of integrity (I:H). What does that mean for this vulnerability? An attacker who successfully exploited this vulnerability could gain the ability to modify another user's cluster without authorization. It does not lead to information disclosure or service downtime.

CVSS base score

6.5 / 10

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C

Highest base score supplied by MSRC for this record; the vector belongs to that score. Ratings can vary by product. Microsoft Important is displayed as High; Moderate is displayed as Medium.

Affected products

• Azure CycleCloud 8.9.1

Source guidance

Remediation

• Release Notes

At least one Microsoft vendor-fix reference is available. Check each affected product for its applicable update, prerequisites, and supported version.

Authoritative sources & updates

Findings and update information come from the linked publishers. GTP compiles the public record and provides the recommendation above. CVSS ratings shown here come from Microsoft. NVD references provide additional public context.

• Microsoft Security Response Center (opens in a new tab)
• Microsoft security update · Release Notes (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · Release Notes (opens in a new tab)
• Microsoft security update · Release Notes (opens in a new tab)