Argument injection vulnerability in Opera before 7.50 does not properly filter "-" characters that begin a hostname in a telnet URI, which allows remote attackers to insert options to the resulting command line and overwrite arbitrary files via (1) the "-f" option on Windows XP or (2) the "-n" option on Linux.

References

• https://nvd.nist.gov/vuln/detail/CVE-2004-0473
• https://exchange.xforce.ibmcloud.com/vulnerabilities/16139
• http://security.gentoo.org/glsa/glsa-200405-19.xml
• http://securitytracker.com/id?1010142
• http://www.idefense.com/application/poi/display?id=104&type=vulnerabilities
• http://www.opera.com/linux/changelogs/750/index.dml
• http://www.securityfocus.com/bid/10341