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TITLE:
Solar FTP Server FTP Command Processing Denial of Service
Vulnerability

SECUNIA ADVISORY ID:
SA42674

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42674/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42674

RELEASE DATE:
2010-12-27

DISCUSS ADVISORY:
http://secunia.com/advisories/42674/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42674/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=42674

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
modpr0be has discovered a vulnerability in Solar FTP Server, which
can be exploited by malicious users to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error when constructing a log
message and can be exploited to cause the FTP service
(sfsservice.exe) to crash by sending an unimplemented FTP command
(e.g. APPE or NLST) containing an overly long parameter.

The vulnerability is confirmed in version 2.0. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
modpr0be

ORIGINAL ADVISORY:
http://www.digital-echidna.org/2010/12/solarftp-2-0-multiple-commands-denial-of-service-vulnerability/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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