Vulnerabilities > CVE-2004-1705 - Buffer Overflow vulnerability in Citadel/UX Username

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
citadel
nessus
exploit available
NVD
Published: 2004-07-30
Updated: 2017-07-11

Summary

Buffer overflow in Citadel/UX 6.23 and earlier allows remote attackers to cause a denial of service via a long username.

Vulnerable Configurations

Part Description Count
Application
Citadel
5

Exploit-Db

  • descriptionCitadel/UX Remote Denial of Service Exploit (PoC). CVE-2004-1705. Dos exploit for linux platform
    idEDB-ID:370
    last seen2016-01-31
    modified2004-08-02
    published2004-08-02
    reporterCoKi
    sourcehttps://www.exploit-db.com/download/370/
    titleCitadel/UX Remote Denial of Service Exploit PoC
  • descriptionCitadel/UX Remote Buffer Overflow Exploit. CVE-2004-1705. Remote exploit for linux platform
    idEDB-ID:424
    last seen2016-01-31
    modified2004-08-30
    published2004-08-30
    reporterNebunu
    sourcehttps://www.exploit-db.com/download/424/
    titleCitadel/UX Remote Buffer Overflow Exploit
  • descriptionCitadel/UX <= 6.23 Remote USER Directive Exploit (Private Version). CVE-2004-1705. Remote exploit for linux platform
    idEDB-ID:437
    last seen2016-01-31
    modified2004-09-09
    published2004-09-09
    reporterNebunu
    sourcehttps://www.exploit-db.com/download/437/
    titleCitadel/UX <= 6.23 - Remote USER Directive Exploit

Nessus

NASL familyGain a shell remotely
NASL idCITADEL_OVERFLOW.NASL
descriptionThe remote host is running Citadel/UX, a messaging server for Unix. There is a buffer overflow in the remote version of this software that could be exploited by a remote attacker to create a denial of service, or execute arbitrary code. To exploit this flaw, an attacker would need to provide a specially crafted argument to the USER command.
last seen2020-06-01
modified2020-06-02
plugin id13856
published2004-07-30
reporterThis script is Copyright (C) 2004-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/13856
titleCitadel/UX USER Command Remote Overflow
code
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if(description)
{
 script_id(13856);
 script_cve_id("CVE-2004-1705");
 script_bugtraq_id(10833);
 script_xref(name:"Secunia", value:"12197");

 script_version("1.19");

 script_name(english:"Citadel/UX USER Command Remote Overflow");
 script_summary(english:"Checks the version of the remote Citadel server");

 script_set_attribute(
   attribute:"synopsis",
   value:"The remote messaging service has a buffer overflow vulnerability."
 );
 script_set_attribute( attribute:"description",  value:
"The remote host is running Citadel/UX, a messaging server for Unix.

There is a buffer overflow in the remote version of this software
that could be exploited by a remote attacker to create a denial of
service, or execute arbitrary code.

To exploit this flaw, an attacker would need to provide a specially
crafted argument to the USER command." );
 script_set_attribute(
   attribute:"see_also",
   value:"https://seclists.org/bugtraq/2004/Jul/349"
 );
 script_set_attribute(
   attribute:"solution", 
   value:"Upgrade to Citadel 6.24 or later."
 );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
 script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
 script_set_attribute(attribute:"plugin_publication_date", value: "2004/07/30");
 script_set_attribute(attribute:"vuln_publication_date", value: "2004/07/29");
 script_cvs_date("Date: 2018/11/15 20:50:22");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_end_attributes();

 script_category(ACT_GATHER_INFO);
 script_family(english:"Gain a shell remotely");
 script_copyright(english:"This script is Copyright (C) 2004-2018 Tenable Network Security, Inc.");
 script_dependencies("find_service2.nasl");
 script_require_ports("Services/citadel/ux", 504);
 exit(0);
}


port = get_kb_item("Services/citadel/ux");
if ( ! port ) port = 504;

if ( ! get_port_state(port) ) exit(0);
soc = open_sock_tcp(port);
if ( ! soc ) exit(0);

greetings = recv_line(socket:soc, length:4096);
if ( ! ( greetings =~ "^200.*Citadel(/UX)?.*" ) ) exit(0);

send(socket:soc, data:'INFO\r\n');
for ( i = 0 ; i < 15 ; i ++ )
{
 r = recv_line(socket:soc, length:4096);
 if ( ! r ) break;
 if ( r =~ "^000" ) break;
 data += r;
}

version = egrep(pattern:"^Citadel(/UX)? [0-9.]*", string:data);
if ( version )
{
 version = chomp(version);
 set_kb_item(name:"citadel/" + port + "/version", value:version);
 version = egrep(pattern:"^Citadel(/UX)? ([0-5]\..*|6\.([0-1][0-9]|2[0-3])[^0-9])",
		string:data);

if ( version )
	security_hole(port);
}

References