Xlight FTPd Multiple Directory Traversal in SFTP

2010.07.14

Credit: bill

Risk: Medium

Local: No

Remote: Yes

CVE: CVE-2010-2695

CWE: CWE-22

CVSS Base Score: 6.5/10

Impact Subscore: 6.4/10

Exploitability Subscore: 8/10

Exploit range: Remote

Attack complexity: Low

Authentication: Single time

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

Accensus Security Group Vulnerability Advisory [L-03]

Date: 7/5/2010

Vendor: http://www.xlightftpd.com/

Effected Software: Xlight FTP Server 3.5.5

Description of Vulnerability:

The SFTP server contains several directory traversal vulnerabilities: get, ls, rm, rename, etc. For example get ../../../../boot.ini will grab c:\boot.ini

Severity: Medium

Local / Remote:  Local

Timeline:

Vendor informed 7/2, fix released 7/4

www.accensussecurity.com

References:

http://www.xlightftpd.com/whatsnew.htm

http://xforce.iss.net/xforce/xfdb/60151

http://www.securityfocus.com/archive/1/archive/1/512192/100/0/threaded

http://secunia.com/advisories/40473

http://osvdb.org/66037

See this note in RAW Version

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Xlight FTPd Multiple Directory Traversal in SFTP

References:

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