Privilege Escalation in MAAS via Websocket Request Manipulation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-7044
StatePUBLISHED
Assignercanonical
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-03 16:16:00 UTC
Updated2026-10-18 17:10:00 UTC
DescriptionAn Improper Input Validation vulnerability exists in the user websocket handler of MAAS. An authenticated, unprivileged attacker can intercept a user.update websocket request and inject the is_superuser property set to true. The server improperly validates this input, allowing the attacker to self-promote to an administrator role. This results in full administrative control over the MAAS deployment.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Problem Types: CWE-269 | NVD-CWE-noinfo | CWE-269 CWE-269 Improper Privilege Management

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1[email protected]Secondary7.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
3.1CNACVSS7.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Canonical Maas All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ubuntu MAAS affected 3.3.0 3.3.11 semver Linux
CNA Ubuntu MAAS affected 3.4.0 3.4.9 semver Linux
CNA Ubuntu MAAS affected 3.5.0 3.5.9 semver Linux
CNA Ubuntu MAAS affected 3.6.0 3.6.2 semver Linux
CNA Ubuntu MAAS unaffected 3.7.0 semver Linux
CNA Ubuntu MAAS unaffected 3.8.0 semver Linux

References

ReferenceSourceLinkTags
bugs.launchpad.net/maas/+bug/2115714 [email protected] bugs.launchpad.net Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Jacopo Rota (en)

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