FTP: Microsoft IIS FTP Wildcard Characters Denial of Service
This signature detects denial-of-service (DoS) attempts against Microsoft FTP Service in Microsoft IIS 4.0, 5.0 and Wu-FTP. Attackers who have previously established an FTP session can send glob characters within a maliciously crafted NLST request to crash the server.
Extended Description
Due to a flaw in the pattern-matching function used by FTP commands, denial of service attacks can be successfully launched. If a user submits an FTP command along with a filename containing specially placed wildcard sequences, the pattern-matching function will not allocate sufficent memory. Resulting in IIS experiencing denial of service condition.
Affected Products
Microsoft iis
Short Name
FTP:DOS:MS-IIS-WILDCARD
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
FTP
Keywords
CVE-2005-0256 Characters Denial FTP IIS Microsoft Service Wildcard bid:2717 of
Release Date
05/08/2003
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3336
False Positive
Unknown
Vendors
Microsoft
CVSS Score
5.0