Vulnerability CVE-2007-6263
Published: 2007-12-06   Modified: 2012-02-12

Description:
The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Netkit-ftp -> Netkit ftp 

 References:
http://www.securityfocus.com/bid/26763
http://osvdb.org/41191
http://bugs.gentoo.org/show_bug.cgi?id=199206
http://www.gentoo.org/security/en/glsa/glsa-200801-17.xml
http://secunia.com/advisories/28697
http://marc.info/?l=full-disclosure&m=119704348003382&w=2
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