Kismet SayText command execution

kismet-saytext-command-execution (9213) The risk level is classified as HighHigh Risk

Description:

Kismet is could allow a remote attacker to execute arbitrary commands on the system. A remote attacker could pass a specially-crafted ESSID containing a backtick or a pipe character to the SayText function, which passes text to the shell of the executing user, to execute arbitrary commands on the system running Kismet.

Platforms Affected:

  • Mike Kershaw, Kismet 2.2
  • Mike Kershaw, Kismet 2.2.1

Remedy:

Upgrade to the latest version of Kismet (2.2.2 or later), available from the Kismet Web site. See References.

Consequences:

Gain Access

References:

  • BugTraq Mailing List, Tue May 28 2002 - 23:49:55 CDT, New Kismet Packages available - SayText() and suid kismet_server issues at http://archives.neohapsis.com/archives/bugtraq/2002-05/0259.html.
  • Kismet Web site, Kismet Change Log, May 27 2002 at http://www.kismetwireless.net/CHANGELOG. (Fixed (potentially) exploitable hole (local only). Fixed remote-exploitable hole (ack!) with specially crafted SSID's and Festival speech output.)
  • BID-4883: Kismet ESSID Remote Command Execution Vulnerability
  • CVE-2002-0904: SayText function in Kismet 2.2.1 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters (backtick or pipe) in the essid argument.

Reported:

May 29, 2002

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