VAR-200812-0100
Vulnerability from variot - Updated: 2023-12-18 13:30WinFTP FTP Server 2.3.0, when passive (aka PASV) mode is used, allows remote authenticated users to cause a denial of service via a sequence of FTP sessions that include an invalid "NLST -1" command. Win FTP Server is a professional Windows FTP server. If a remote attacker sends multiple login requests ending with a PASV command to Win FTP Server, it may cause the server to crash. Exploiting this issue allows remote attackers to crash the application, denying service to legitimate users. This issue affects Win FTP 2.0.2; other versions may also be vulnerable. ----------------------------------------------------------------------
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TITLE: WinFTP "PASV" Denial of Service Vulnerability
SECUNIA ADVISORY ID: SA32209
VERIFY ADVISORY: http://secunia.com/advisories/32209/
CRITICAL: Not critical
IMPACT: DoS
WHERE:
From remote
SOFTWARE: WinFTP Server 2.x http://secunia.com/advisories/product/12923/
DESCRIPTION: A vulnerability has been discovered in WinFTP, which can be exploited by malicious users to cause a DoS (Denial of Service).
The vulnerability is caused due to an error when handling the PASV command.
The vulnerability is confirmed in version 2.3.0. Other versions may also be affected.
SOLUTION: Grant access to trusted users only.
PROVIDED AND/OR DISCOVERED BY: dmnt
ORIGINAL ADVISORY: http://milw0rm.com/exploits/6717
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/advisories/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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