CVE-2020-27781

HIGH
7.1
CVSS Score
Published: December 18, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 03:09 AM UTC
5 products affected across 3 vendorsFedoraOpenShift Container PlatformOpenStack Platform

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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%

Description

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 14.2.1615.0.0 ≤ v < 15.2.816.0.0 ≤ v < 16.2.016.2.0
Affected range stops below 14.2.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.2.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.2.0, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-522

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