KVIrc "dot dot" directory traversal

kvirc-dot-directory-traversal (7761) The risk level is classified as LowLow Risk


KVIrc could allow a remote attacker to traverse directories on a victim's system. If the 'Listen to !nick <soundname> requests' option is enabled, a remote attacker can send a specially-crafted DCC GET request containing "dot dot" sequences (/../) to traverse directories and view any known file on the system.


Obtain Information


Upgrade to the latest version of KVIrc (2.1.1 or later), available from the KVIrc Web site. See References.

As a workaround, disable the 'Listen to !nick <soundname> requests.' option in the (Sound) tab of the Misc options dialog.


Platforms Affected:

  • Szymon Stefanek (aka Pragma) KVIrc 0.9.0


Sep 24, 1999

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