Security readout for executives and security teams
Plain-English summary
Gallagher Command Centre Server had a privilege-check failure in its COM interface. A logged-in operator with low privileges could access sensitive server information they should not be allowed to see. This matters most for organizations using Gallagher for physical access or security operations.
Executive priority
Prioritize remediation for Gallagher environments that protect facilities, critical operations, or regulated sites. The vulnerability is high severity because valid low-privileged users could access sensitive server information, but the provided sources do not confirm active exploitation.
Technical view
CVE-2021-23193 is CWE-200 affecting Gallagher Command Centre. The CVSS 3.1 score is 8.1 with network access, low privileges, no user interaction, high confidentiality and integrity impact, and no availability impact. Affected versions include 8.50, 8.40, 8.30, 8.20 below listed maintenance releases, and 8.10 or earlier.
Likely exposure
Exposure is likely limited to Gallagher Command Centre deployments running affected versions, especially where many operators have server access. The issue requires authenticated low-privileged operator access, not anonymous internet access based on the supplied sources.
Exploitation context
The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. Abuse would require a valid low-privileged operator account and reachable Command Centre Server COM interface.
Researcher notes
The record lacks CPEs and does not describe exploit mechanics. Treat the affected-version list as authoritative from the supplied sources. The CVSS vector indicates potential integrity impact, although the prose focuses on sensitive information retrieval.
Mitigation direction
- Check Gallagher's advisory for supported fixed releases and deployment guidance.
- Upgrade 8.50 to 8.50.2048 MR3 or later.
- Upgrade 8.40 to 8.40.2063 MR4 or later.
- Upgrade 8.30 to 8.30.1454 MR4 or later.
- Upgrade 8.20 to 8.20.1291 MR6 or later.
- Assess replacement or vendor guidance for 8.10 and earlier versions.
Validation and detection
- Inventory all Gallagher Command Centre Server versions in production and recovery environments.
- Confirm whether any systems run 8.10 or earlier.
- Review operator accounts with low privileges and remove unnecessary access.
- Verify upgraded systems meet or exceed the named maintenance release versions.
- Check monitoring for unusual sensitive information access by operator accounts.
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-2021-23193 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:L/UI:N/S:U/C:H/I:H/A:N2.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://security.gallagher.com/Security-Advisories/CVE-2021-23193CVE 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.