Security readout for executives and security teams
Plain-English summary
CVE-2021-35049 is a critical authenticated command injection issue in Fidelis Network and Deception CommandPost. A logged-in attacker could send crafted web requests that run system commands on the CommandPost and return command output. This creates serious risk to a central security platform.
Executive priority
Treat this as an urgent remediation item for any affected Fidelis deployment. The product is security infrastructure, and successful abuse could let an authenticated attacker execute commands on the management platform.
Technical view
The CVSS 3.1 score is 9.9 with network access, low complexity, low privileges, no user interaction, and high impact. Sources describe command execution through authenticated HTTP requests to the CommandPost web interface. Affected versions include Fidelis Network and Deception before 9.3.7 and version 9.4.
Likely exposure
Exposure applies to organizations running affected Fidelis Network or Fidelis Deception CommandPost versions. Risk is higher where the web interface is reachable by broad internal user groups, VPN users, or the internet. The sources do not quantify deployment prevalence.
Exploitation context
The provided bundle does not show CISA KEV listing, so active exploitation is not established here. Public research is referenced, and the issue requires authenticated access. Compromised credentials or excessive console access would materially increase practical risk.
Researcher notes
The CVE description says command injection, while the bundled CWE is CWE-89. Do not assume SQL injection behavior from that CWE alone. Evidence supports authenticated command execution via the web interface, but the bundle does not provide exploit details or confirmed active exploitation.
Mitigation direction
- Upgrade affected Fidelis Network and Deception deployments to vendor-fixed releases.
- Prioritize systems on version 9.4 or versions earlier than 9.3.7.
- Restrict CommandPost web interface access to trusted administrative networks.
- Review vendor advisories for exact patch packages and operational guidance.
- Harden authentication and remove unnecessary CommandPost accounts.
Validation and detection
- Inventory Fidelis Network and Deception CommandPost versions across the environment.
- Confirm no deployed CommandPost is earlier than 9.3.7 or on 9.4.
- Review access paths to the CommandPost web interface.
- Check logs for unusual authenticated web requests and command-output-like responses.
- Verify vendor patch status through change records or appliance metadata.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-35049 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
- Critical
- CVSS
- 9.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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:C/C:H/I:H/A:H3.16Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://support.fidelissecurity.com/hc/en-us/categories/360001842694-Advisories-News-and-PoliciesCVE reference · x_refsource_CONFIRM
- https://www.securifera.com/blog/2021/06/24/operation-eagle-eye/CVE 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.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.