Security readout for executives and security teams
Plain-English summary
CVE-2015-9242 is a denial-of-service issue in the ecstatic Node.js module before 1.4.0. A malformed If-Modified-Since HTTP header can trigger a V8 Date parsing exception and crash the server process.
Executive priority
Treat this as a targeted availability risk. It is not shown as actively exploited, but public services using vulnerable ecstatic versions could be crashed remotely and should be updated during normal remediation cycles.
Technical view
ecstatic versions before 1.4.0 pass certain If-Modified-Since header values into new Date() or Date.parse(). Specific input strings can cause V8 to raise an exception, creating uncontrolled resource or availability impact classified as CWE-400.
Likely exposure
Exposure is limited to Node.js services that use ecstatic before 1.4.0, especially public static-file serving paths that accept If-Modified-Since headers from clients.
Exploitation context
The source bundle does not show KEV listing or confirmed active exploitation. The issue appears remotely triggerable through an HTTP request header, but exploit prevalence and real-world abuse are not evidenced here.
Researcher notes
Evidence is concise: affected product and version boundary are clear, but CVSS, exploit status, and detailed remediation guidance are not provided in the bundle. Avoid expanding scope beyond ecstatic before 1.4.0.
Mitigation direction
- Upgrade ecstatic to version 1.4.0 or later.
- Review vendor and package advisory guidance for any additional constraints.
- Remove or replace obsolete ecstatic usage where upgrading is impractical.
- Ensure service supervision restarts crashed Node.js processes.
- Prioritize public-facing services before internal-only deployments.
Validation and detection
- Review package manifests and lockfiles for ecstatic versions below 1.4.0.
- Confirm whether static-file routes are served through ecstatic.
- Check production crash logs for failures associated with If-Modified-Since parsing.
- Use dependency scanning to flag ecstatic below 1.4.0.
- Verify upgraded builds no longer include vulnerable ecstatic versions.
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-400: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2015-9242 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://github.com/jfhbrook/node-ecstatic/pull/179CVE reference · x_refsource_MISC
- https://bugs.chromium.org/p/v8/issues/detail?id=4640CVE reference · x_refsource_MISC
- https://nodesecurity.io/advisories/64CVE 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.