Security readout for executives and security teams
Plain-English summary
Echo ShareCare 8.15.5 has an authenticated file-read issue in its TextReader feature. A logged-in user could cause the server to read arbitrary local files, and files reachable through UNC paths. This can expose sensitive configuration, data, or secrets depending on server permissions.
Executive priority
Treat as a targeted data-exposure risk rather than a broad unauthenticated emergency. Prioritize asset identification and access control review for any ShareCare 8.15.5 system handling sensitive data.
Technical view
CVE-2021-36123 is a local file inclusion flaw in General/TextReader/TextReader.cfm. The textFile parameter processes remote input from an authenticated user and can read arbitrary server filesystem content or files accessible over UNC paths. The source bundle provides no CVSS, CWE, fixed version, or vendor mitigation details.
Likely exposure
Exposure appears limited to organizations running Echo ShareCare 8.15.5 where authenticated users can reach the TextReader feature. Risk depends on web application account permissions and reachable UNC paths.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The described attack requires authenticated access. No exploit code, weaponized campaign, or public exploitation status is provided in the supplied sources.
Researcher notes
Evidence is sparse: the provided CVE text identifies the vulnerable path, parameter, authentication requirement, and file-read impact, but omits scoring, patch status, CWE mapping, and affected CPEs. Avoid assuming broader versions or exploitation without additional vendor evidence.
Mitigation direction
- Inventory Echo ShareCare deployments and identify any 8.15.5 instances.
- Check vendor and Atredis guidance for fixed versions or supported mitigations.
- Restrict TextReader feature access to necessary trusted users only.
- Reduce web application filesystem and UNC share permissions to least privilege.
- Monitor for unusual TextReader.cfm requests and unexpected file access patterns.
Validation and detection
- Confirm whether Echo ShareCare 8.15.5 is present in the environment.
- Review access logs for General/TextReader/TextReader.cfm usage.
- Verify which authenticated roles can access the TextReader feature.
- Audit web application account access to local files and UNC paths.
- Document whether any vendor fix or supported workaround is applied.
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-2021-36123 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/atredispartners/advisories/blob/master/ATREDIS-2021-0001.mdCVE 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.