Security readout for executives and security teams
Plain-English summary
Older pfSense releases before 2.1.4 had a web interface session weakness. An attacker could potentially take over a firewall web session through a login cookie issue. Because firewall administration is highly privileged, affected internet-facing or broadly reachable management interfaces deserve prompt attention.
Executive priority
Prioritize remediation for any exposed or production firewall management interface. Even without confirmed exploitation evidence, session hijacking of a firewall admin surface can create serious operational and security impact.
Technical view
CVE-2014-4691 is a session fixation flaw in the pfSense WebGUI before version 2.1.4. The CVE description says remote attackers could hijack web sessions via a firewall login cookie. The source bundle does not include CVSS, CWE, detailed prerequisites, or exploit mechanics.
Likely exposure
Exposure is likely limited to pfSense installations running versions before 2.1.4, especially where the WebGUI is reachable by untrusted networks or many internal users.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. It does describe remote session hijacking potential, but provides no confirmed exploit status.
Researcher notes
Available evidence is sparse: the CVE record names session fixation, pfSense before 2.1.4, and the login cookie vector. No CVSS, CWE, prerequisites, authentication state, or patch details beyond the affected version boundary are present in the bundle.
Mitigation direction
- Upgrade affected pfSense systems to 2.1.4 or later.
- Review the pfSense advisory for vendor-specific remediation guidance.
- Restrict WebGUI access to trusted administrative networks.
- Identify and retire any remaining pre-2.1.4 pfSense deployments.
Validation and detection
- Inventory pfSense versions across firewall assets.
- Confirm no pfSense WebGUI remains below version 2.1.4.
- Review administrative interface exposure from untrusted networks.
- Check change records for completed upgrade or vendor advisory remediation.
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.
CVE-2014-4691 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://pfsense.org/security/advisories/pfSense-SA-14_12.webgui.ascCVE reference · x_refsource_CONFIRM
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.