Debian DSA-087-1 : wu-ftpd - remote root exploit

#%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-087. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(14924);
  script_version("1.25");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2001-0550");
  script_bugtraq_id(3581);
  script_xref(name:"CERT", value:"886083");
  script_xref(name:"DSA", value:"087");

  script_name(english:"Debian DSA-087-1 : wu-ftpd - remote root exploit");
  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:
"CORE ST reports that an exploit has been found for a bug in the
 wu-ftpd glob code (this is the code that handles filename wildcard
 expansion). Any logged in user (including anonymous FTP users) can
 exploit the bug to gain root privileges on the server."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2001/dsa-087"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"This has been corrected in version 2.6.0-6 of the wu-ftpd package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/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:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  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:2.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2001/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_set_attribute(attribute:"vuln_publication_date", value:"2001/11/28");
  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:"2.2", prefix:"wu-ftpd", reference:"2.6.0-6")) flag++;
if (deb_check(release:"2.2", prefix:"wu-ftpd-academ", reference:"2.6.0-6")) 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");