Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability

Open Management Infrastructure Elevation of Privilege Vulnerability

CheckOps priority index

5.3/10 Patch within 7 days

Severity7.8

Probability1.1

Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 11.4% higher than 96.0% of CVEs

CVSS 3.1 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:

Exploited for 1,827 days 03 Nov 2021

CISA due date 17 Nov 2021 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

KEV catalog (CISA)03 Nov 2021
Exploited in EUVD (ENISA)03 Nov 2021
Used by ransomwareno
EPSS above 10 %11.4%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Affected products

System Center Operations Manager (SCOM)Container Monitoring SolutionOpen Management InfrastructureAzure Automation Update ManagementAzure Stack HubAzure SentinelAzure Diagnostics (LAD)Log Analytics AgentAzure Security CenterAzure Automation State Configuration, DSC ExtensionOpen Management Infrastructure (OMI)

Affected versions

1.0.0 <OMI version: 1.6.8-1
1.0.0 <publication
16.0 <OMI Version 1.6.8-1
1.0.0 <OMS Agent for Linux GA v1.13.40-0
1.0.0 <Monitor, Update and Config Mgmnt 1.14.01
3.0.0 <LAD v4.0.13 and LAD v3.0.135
2.0.0 <DSC Agent versions: 2.71.1.25, 2.70.0.30, 3.0.0.3

Weaknesses (CWE)

CWE-1390

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

15 Sept 2021
Published
03 Nov 2021
Exploitation reported (ENISA)
03 Nov 2021
Added to the KEV catalog
17 Nov 2021
CISA remediation due date
26 Sept 2026
EPSS peak: 11.4%

References

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