Debian DSA-457-1 : wu-ftpd - several vulnerabilities

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-457. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(15294);
  script_version("1.23");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2004-0148", "CVE-2004-0185");
  script_bugtraq_id(9832);
  script_xref(name:"DSA", value:"457");

  script_name(english:"Debian DSA-457-1 : wu-ftpd - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Two vulnerabilities were discovered in wu-ftpd :

  - CAN-2004-0148
    Glenn Stewart discovered that users could bypass the
    directory access restrictions imposed by the
    restricted-gid option by changing the permissions on
    their home directory. On a subsequent login, when access
    to the user's home directory was denied, wu-ftpd would
    fall back to the root directory.

  - CAN-2004-0185

    A buffer overflow existed in wu-ftpd's code which deals
    with S/key authentication."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2004/dsa-457"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"For the stable distribution (woody) these problems have been fixed in
version 2.6.2-3woody4.

We recommend that you update your wu-ftpd package."
  );
  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: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_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:wu-ftpd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/03/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_set_attribute(attribute:"vuln_publication_date", value:"2000/06/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2021 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"3.0", prefix:"wu-ftpd", reference:"2.6.2-3woody4")) flag++;
if (deb_check(release:"3.0", prefix:"wu-ftpd-academ", reference:"2.6.2-3woody4")) flag++;

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