mIRC DCC Server allows metacharacters in filenames
| mirc-dcc-metachar-filename (3495) |  Medium Risk |
Description:
mIRC does not filter metacharacters (such as . and \) from sent filenames. A remote attacker could send a seemingly harmless, malicious file and use metacharacters to stage it in a destination directory on the hard drive, such as the autostart directory.
Platforms Affected:
- mIRC, mIRC DCC Server 5.5
Remedy:
Upgrade to the latest version of mIRC (5.91 or later), available from the mIRC Web site. See References.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Sun, 24 Jan 1999 08:44:54 -0800, Mirc 5.5 'DCC Server' hole at http://archives.neohapsis.com/archives/bugtraq/1999_1/0313.html.
- mIRC Web site, Download mIRC or the mIRC FAQ. at http://www.mirc.co.uk/get.html.
- CVE-1999-0399: The DCC server command in the Mirc 5.5 client doesn't filter characters from file names properly, allowing remote attackers to place a malicious file in a different location, possibly allowing the attacker to execute commands.
Reported:
Jan 24, 1999
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