WinSCP scp:// and sftp:// URI handler command execution
| winscp-uri-handler-command-execution (27075) |  Medium Risk |
Description:
WinSCP could allow a remote attacker to execute arbitrary commands on a victim's system, caused by improper validation of scp:// and sftp:// links. If an attacker could persuade a victim to follow a specially-crafted scp:// or sftp:// URL on a malicious Web site, the attacker could cause the victim to download a malicious file allowing the attacker to execute arbitrary commands or corrupt arbitrary files on the victim's system.
*CVSS:
| Base Score: | 8 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 5.9 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of WinSCP (3.8.2 or later), available from the WinSCP Web site. See References.
References:
- Full-Disclosure Mailing List, Fri Mar 10 2006 - 14:24:12 CST : WinSCP - URI Handler Command Switch Parsing.
- WinSCP Web site: WinSCP :: Freeware SFTP and SCP client for WIndows.
- BID-18384: WinSCP URI Handler Remote Arbitrary File Access Vulnerability
- CVE-2006-3015: Argument injection vulnerability in WinSCP 3.8.1 build 328 allows remote attackers to upload or download arbitrary files via encoded spaces and double-quote characters in a scp or sftp URI.
- SA20575: WinSCP Protocol Handler Command Line Switch Injection
- US-CERT VU#912588: WinSCP URI handlers fails to properly parse command line switches
- VUPEN/ADV-2006-2289: WinSCP scp and sftp Protocol Handlers Remote Command Injection Vulnerability
Platforms Affected:
- WinSCP WinSCP 3.8.1
Reported:
Jun 10, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.