Security readout for executives and security teams
Plain-English summary
MELAG FTP Server 2.2.0.4 stores FTP user passwords unencrypted in a local configuration file that the Windows “Everyone” group can read. Anyone with local access to the host may be able to recover all FTP credentials and use them against the FTP service or related workflows.
Executive priority
Treat this as a credential exposure risk for systems using MELAG FTP Server 2.2.0.4. It is not KEV-listed and lacks severity scoring, but plaintext credential access can create downstream compromise if local access exists.
Technical view
The issue is weak local access control on the MELAG FTP Server 2.2.0.4 configuration file. The CVE description states that the “Everyone” group can read the file and that it contains unencrypted passwords for all FTP users. No CVSS, CWE, patch, or affected CPE data is provided in the source bundle.
Likely exposure
Exposure is limited to environments running MELAG FTP Server 2.2.0.4, especially where non-administrative local users can access the server filesystem. The bundle does not identify broader affected versions or products.
Exploitation context
CISA KEV status is false, and the provided sources do not state active exploitation. The public reference is an advisory page, but the source bundle does not provide additional exploit-status evidence.
Researcher notes
Evidence is sparse. The CVE record names version 2.2.0.4 and describes readable plaintext FTP credentials, but the bundle lacks CVSS, CWE, CPE, vendor patch details, and exploitation confirmation. Avoid extending impact beyond local configuration-file access without more source data.
Mitigation direction
- Check MELAG or vendor guidance for a supported update or workaround.
- Restrict local access to the host running MELAG FTP Server.
- Remove broad read access to the FTP configuration file after owner-approved testing.
- Rotate FTP user passwords if the configuration file may have been exposed.
- Disable or retire the affected FTP service if it is not operationally required.
Validation and detection
- Identify hosts running MELAG FTP Server 2.2.0.4.
- Review permissions on the local FTP configuration file.
- Confirm whether non-administrative users can read the configuration file.
- Check whether FTP passwords were stored unencrypted in that file.
- Review access logs for unexpected local access or FTP credential use.
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-2021-41637 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://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/CVE 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.