Security readout for executives and security teams
Plain-English summary
OpenBMCS 2.4 can expose sensitive files to anyone who can reach the web application. The issue is directory listing: folders may reveal configuration files, database credentials, and system details. This is high risk if the product is internet-facing or accessible from untrusted networks.
Executive priority
Treat this as a near-term priority for any exposed OpenBMCS 2.4 system. The main business risk is credential or configuration leakage that could enable follow-on compromise. If no OpenBMCS 2.4 is present, priority drops substantially.
Technical view
CVE-2021-47718 is a CWE-548 information disclosure flaw in OpenBMCS 2.4. Sources describe unauthenticated access to listed directories, including debug and PHP-related paths, exposing sensitive files. CVSS v4 is 8.7 with network access, low complexity, no privileges, and no user interaction required.
Likely exposure
Organizations running OpenBMCS 2.4 are the identified exposed population. Risk is highest where the application is reachable from the internet, partner networks, or broad internal networks. The provided sources do not identify other affected versions.
Exploitation context
A public ExploitDB entry and third-party advisories exist, indicating public exploit information is available. The source bundle does not show CISA KEV listing or other evidence of active exploitation in the wild.
Researcher notes
Evidence is based on CVE data and public advisories. The record names OpenBMCS 2.4 only, CVSS v4 8.7, CWE-548, and no KEV status. Public exploit availability increases urgency, but the bundle does not provide confirmed vendor patch details or active exploitation evidence.
Mitigation direction
- Identify any OpenBMCS 2.4 deployments and prioritize them for review.
- Check vendor and advisory pages for official remediation guidance.
- Restrict network access to OpenBMCS to trusted users and management networks.
- Disable directory listing where supported and appropriate.
- Remove sensitive configuration files from web-accessible directories.
- Review exposed instances for leaked credentials and rotate affected secrets.
Validation and detection
- Confirm whether OpenBMCS 2.4 is deployed in the environment.
- Verify unauthenticated users cannot browse sensitive application directories.
- Review web server configuration for directory listing behavior.
- Inspect access logs for anonymous requests to sensitive directories.
- Validate that credentials or configuration files are not web-accessible.
- Document compensating controls if vendor fixes are unavailable.
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-548: 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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-47718 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
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50671CVE reference · exploit
- Official Product HomepageCVE reference · product
- Zero Science Lab Disclosure (ZSL-2022-5695)CVE reference · third-party-advisory
- VulnCheck Advisory: OpenBMCS Directory Listing Information DisclosureCVE reference · third-party-advisory
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 Information Through Directory Listing
Exposure of Information Through Directory Listing represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.