XChat /dns Reverse Lookup Response Arbitrary Command Execution

Medium Nessus Network Monitor Plugin ID 1874


The remote host is vulnerable to an flaw which allows attackers to execute arbitrary commands.


The remote host is running the XChat IRC client. X-Chat versions 1.8.8 and earlier could allow a remote attacker to execute arbitrary commands on the X-Chat client. A vulnerability regarding the lack of filtering in the EXECL command could allow an attacker to send a specially crafted /dns query that would return a malformed response from the server to execute arbitrary commands on the X-Chat client.


Upgrade or patch according to vendor recommendations.

Plugin Details

Severity: Medium

ID: 1874

File Name: 1874.prm

Family: IRC Clients

Published: 2004/08/20

Modified: 2016/02/05

Dependencies: 1878

Risk Information

Risk Factor: Medium


Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Base Score: 6.4

Temporal Score: 5.5


Temporal Vector: CVSS3#E:U/RL:O/RC:C

Reference Information

CVE: CVE-2002-0382

BID: 4376

OSVDB: 14760