Security readout for executives and security teams
Plain-English summary
MiniFtp has a configuration-parsing buffer overflow. If an attacker can supply an oversized value in the MiniFtp configuration file, the service may execute attacker-controlled code, potentially with root privileges. This is mainly a local or configuration-control risk, not a remote network attack based on the provided sources.
Executive priority
Treat as high priority for environments using MiniFtp, especially shared Linux hosts, appliances, or systems where configuration files may be modified by non-administrators. If MiniFtp is not deployed, business urgency is low. There is public exploit information, but no sourced evidence of active exploitation.
Technical view
CVE-2019-25611 affects skyqinsc MiniFtp. The parseconf_load_setting function uses fixed stack buffers and can be overflowed by configuration values exceeding 128 bytes. The issue is classified as CWE-787 and scored CVSS 4.0 8.6. Sources describe arbitrary code execution through crafted miniftpd.conf content.
Likely exposure
Organizations are exposed if they run MiniFtp and allow untrusted users, automation, packages, or deployment pipelines to write or replace miniftpd.conf. Exposure is higher where MiniFtp runs as root. The source bundle lists all versions as affected, but no fixed version is identified.
Exploitation context
A public ExploitDB reference exists, indicating exploit information is public. The provided sources do not show CISA KEV listing or active exploitation. The attack requires local ability to provide or influence the configuration file rather than unauthenticated remote FTP access.
Researcher notes
The key evidence is local configuration-driven stack overflow in parseconf_load_setting. The advisory states oversized configuration values can overwrite the return address. No patch, affected release boundary, or maintainer remediation is provided in the source bundle, so validation should focus on deployment presence, config control, and privilege context.
Mitigation direction
- Inventory systems running skyqinsc MiniFtp.
- Restrict write access to miniftpd.conf and its parent directories.
- Run MiniFtp with least privileges where operationally possible.
- Replace MiniFtp if no vendor fix is available.
- Monitor the vendor repository and advisories for remediation guidance.
Validation and detection
- Confirm whether MiniFtp is installed or deployed.
- Identify the active miniftpd.conf path and ownership.
- Review file permissions for unauthorized write access.
- Check service account privileges, especially root execution.
- Compare deployed code against vendor repository updates.
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
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ATT&CK lookup starting points
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CWE-787: Exact CWE lookup
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-25611 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.6 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
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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:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.6HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-46807CVE reference · exploit
- Official Product HomepageCVE reference · product
- VulnCheck Advisory: MiniFtp parseconf_load_setting Buffer Overflow via ConfigurationCVE 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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.