Security readout for executives and security teams
Plain-English summary
CVE-2021-39190 affects the SCCM plugin for GLPI before version 2.3.0. Its Configuration page can be viewed publicly in read-only mode, potentially exposing sensitive configuration information to unauthenticated users. The issue is patched in version 2.3.0.
Executive priority
Treat this as a targeted remediation item, not an emergency. Prioritize internet-facing GLPI systems and environments where SCCM configuration details could reveal sensitive infrastructure information. The vendor-published fix is available.
Technical view
The vulnerability is CWE-200 information exposure in pluginsGLPI/sccm versions earlier than 2.3.0. The advisory describes unauthenticated, network-reachable read access to the plugin Configuration page. CVSS 3.1 is 5.3 with low confidentiality impact and no integrity or availability impact.
Likely exposure
Exposure is limited to GLPI environments that installed the SCCM synchronization plugin in a version earlier than 2.3.0, especially where the GLPI web interface or plugin pages are reachable by unauthenticated users.
Exploitation context
The source bundle does not show KEV listing or active exploitation. Exploitation requires network access and no credentials, but the described impact is read-only exposure of configuration information rather than code execution or service disruption.
Researcher notes
Evidence is straightforward but narrow: public read-only access to the Configuration page before 2.3.0. The sources do not enumerate exactly which configuration fields are exposed, so impact assessment should be validated against each deployment’s plugin configuration.
Mitigation direction
- Upgrade the SCCM plugin for GLPI to version 2.3.0 or later.
- Check the vendor advisory before relying on temporary mitigations.
- Disable or remove the plugin if SCCM synchronization is not required.
- Restrict public access to GLPI administrative/plugin pages as a compensating control.
- Review logs for unauthenticated access to the plugin Configuration page.
Validation and detection
- Inventory GLPI instances for the SCCM plugin and version.
- Confirm no installed SCCM plugin version is below 2.3.0.
- Verify the Configuration page is not publicly readable after remediation.
- Review web access logs for historical unauthenticated requests to plugin configuration paths.
- Confirm SCCM-to-GLPI synchronization still works after upgrade.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-39190 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/pluginsGLPI/sccm/security/advisories/GHSA-3324-57w6-jxcqCVE reference · x_refsource_CONFIRM
- https://github.com/pluginsGLPI/sccm/commit/29a7f92d32a0cf9aa3f22c52c50b738274d2813eCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.