Vulnerabilities > CVE-2003-1327 - Remote Stack-based Buffer Overrun vulnerability in Wu-Ftpd SockPrintf()

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
 script_id(14371);
 script_version("1.22");

 script_cve_id("CVE-2003-1327");
 script_bugtraq_id(8668);
 
 script_name(english:"WU-FTPD MAIL_ADMIN Function Remote Overflow");
 
 script_set_attribute(attribute:"synopsis", value:
"The remote FTP server is affected by a buffer overflow vulnerability." );
 script_set_attribute(attribute:"description", value:
"Th remote Wu-FTPD server fails to properly check bounds on a pathname
when Wu-Ftpd is compiled with MAIL_ADMIN enabled resulting in a buffer
overflow.  With a specially crafted request, an attacker can possibly
execute arbitrary code as the user Wu-Ftpd runs as (usually root)
resulting in a loss of integrity, and/or availability. 

It should be noted that this vulnerability is not present within the
default installation of Wu-Ftpd. 

The server must be configured using the 'MAIL_ADMIN' option to notify
an administrator when a file has been uploaded. 

*** Nessus solely relied on the banner of the remote server
*** to issue this warning, so it may be a false positive." );
 script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2003/Sep/336");
 script_set_attribute(attribute:"solution", value:
"Upgrade to Wu-FTPd 2.6.3 or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
 script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"false");
		
 script_set_attribute(attribute:"plugin_publication_date", value: "2004/08/25");
 script_set_attribute(attribute:"vuln_publication_date", value: "2003/09/22");
 script_cvs_date("Date: 2018/11/15 20:50:22");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_end_attributes();

		    
 
 script_summary(english:"Checks the banner of the remote wu-ftpd server");
 script_category(ACT_GATHER_INFO);
 script_family(english:"FTP");
 
 script_copyright(english:"This script is Copyright (C) 2004-2018 Tenable Network Security, Inc.");
		  
 script_dependencie("ftpserver_detect_type_nd_version.nasl", "ftp_anonymous.nasl");
 script_require_keys("ftp/login", "ftp/wuftpd", "Settings/ParanoidReport");
 script_require_ports("Services/ftp", 21);
  
 exit(0);
}

#
# The script code starts here : 
#
include("ftp_func.inc");
include("backport.inc");
include("global_settings.inc");
include("audit.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

port = get_ftp_port(default: 21);

banner = get_backport_banner(banner:get_ftp_banner(port: port));
if (! banner) exit(1);
if(egrep(pattern:".*(wu|wuftpd)-2\.6\.[012].*", string:banner)) security_hole(port);

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Slackware Security Advisory 2003-259-03. The text 
# itself is copyright (C) Slackware Linux, Inc.
#

include("compat.inc");

if (description)
{
  script_id(18726);
  script_version("1.15");
  script_cvs_date("Date: 2019/10/25 13:36:20");

  script_cve_id("CVE-2003-1327");
  script_xref(name:"SSA", value:"2003-259-03");

  script_name(english:"Slackware 9.0 / current : WU-FTPD Security Advisory (SSA:2003-259-03)");
  script_summary(english:"Checks for updated package in /var/log/packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Slackware host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Upgraded WU-FTPD packages are available for Slackware 9.0 and -
-current. These fix a problem where an attacker could use a specially
crafted filename in conjunction with WU-FTPD's conversion feature
(mostly used to compress files, or produce tar archives) to execute
arbitrary commands on the server. In addition, a MAIL_ADMIN which has
been found to be insecure has been disabled. We do not recommend
deploying WU-FTPD in situations where security is required."
  );
  # http://www.slackware.com/security/viewer.php?l=slackware-security&y=2003&m=slackware-security.365971
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ea5b1806"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected wu-ftpd package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:wu-ftpd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2003/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/07/13");
  script_set_attribute(attribute:"vuln_publication_date", value:"2003/09/22");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 Tenable Network Security, Inc.");
  script_family(english:"Slackware Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Slackware/release", "Host/Slackware/packages");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("slackware.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Slackware/release")) audit(AUDIT_OS_NOT, "Slackware");
if (!get_kb_item("Host/Slackware/packages")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Slackware", cpu);


flag = 0;
if (slackware_check(osver:"9.0", pkgname:"wu-ftpd", pkgver:"2.6.2", pkgarch:"i386", pkgnum:"3")) flag++;

if (slackware_check(osver:"current", pkgname:"wu-ftpd", pkgver:"2.6.2", pkgarch:"i486", pkgnum:"3")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:slackware_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");