The findMacroMarker function in parserLib.pas in Rejetto HTTP File Server (aks HFS or HttpFileServer) 2.3x before 2.3c allows remote attackers to execute arbitrary programs via a %00 sequence in a search action.
Why It Matters
Analysis dossierWhy It Matters
The findMacroMarker function in parserLib.pas in Rejetto HTTP File Server (aks HFS or HttpFileServer) 2.3x before 2.3c allows remote attackers to execute arbitrary programs via a %00 sequence in a search action.
Immediate Attention
Yes
Unknown
Risk basis: CISA KEV exploitation signal; CRITICAL severity; Source-confirmed exploitation or CISA KEV/ransomware metadata
Affected Products & Remediation
1 source-backed product- rejetto http file server · >= 2.3 < 2.3c · NVD CPE · Source
Vendor or catalog guidance (source)
- CISA KEV: Apply updates per vendor instructions.
Known exploitation (source facts)
Only what a source states. Unknown means no source has said either way; it is not "not exploited".
- CISA KEV
- Listed
- Exploited (source statement)
- Yes
- Publicly disclosed (source)
- Unknown
CISA required action: Apply updates per vendor instructions.
Suggested hunting (rule-based inference)
SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.
Matched web-rce (CWE-94, Affected product: rejetto http file server, CVSS AV:N); kev-network-exposure (CVSS AV:N, CISA KEV Listed)
Exposure
- Find affected web-facing installations and verify their versions.Telemetry: DeviceTvmSoftwareVulnerabilities · A network-reachable code execution weakness needs an exact local product match. · Rule web-rce
- Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure
Exploitation evidence
- Review child processes spawned by the affected web service for unusual command execution.Telemetry: DeviceProcessEvents · Unexpected service child processes can support an exploitation investigation. · Rule web-rce
Show more (2)
Exploitation evidence
- Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure
Response
- Confirm the vendor fix or mitigation on each affected installation.Telemetry: DeviceTvmSoftwareVulnerabilities · Remediation should be checked against the product and version in inventory. · Rule web-rce
CISA KEV Record
Apply updates per vendor instructions.
Change History & Source Data
— No recorded material change
- CNA / source
- cve@mitre.org
- Record status · verification
- UPDATED · CISA KEV confirmed
- CPE
- cpe:2.3:a:rejetto:http_file_server:*:*:*:*:*:*:*:*
Evidence & Provenance
Linked by the query's stored exact CVE association. Review required tables and validation status before use.
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2014-6287"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel descLooking up related community queries…