Vulnerabilities > CVE-2001-0406 - Symbolic Link vulnerability in Samba Insecure TMP file

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-048. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(14885);
  script_version("1.20");
  script_cvs_date("Date: 2019/08/02 13:32:16");

  script_cve_id("CVE-2001-0406");
  script_bugtraq_id(2617);
  script_xref(name:"DSA", value:"048");

  script_name(english:"Debian DSA-048-3 : samba");
  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:
"Marcus Meissner discovered that samba was not creating temporary
 files safely in two places :

  - when a remote user queried a printer queue samba would
    create a temporary file in which the queue data would be
    written. This was being done using a predictable
    filename, and insecurely, allowing a local attacker to
    trick samba into overwriting arbitrary files.
  - smbclient 'more' and 'mput' commands also created
    temporary files in /tmp insecurely.

Both problems have been fixed in version 2.0.7-3.2, and we recommend
that you upgrade your samba package immediately. (This problem is also
fixed in the Samba 2.2 codebase.)


Note: DSA-048-1 included an incorrectly compiled sparc package, which
the second edition fixed.

The third edition of the advisory was made because Marc Jacobsen from
HP discovered that the security fixes from samba 2.0.8 did not fully
fix the /tmp symlink attack problem. The samba team released version
2.0.9 to fix that, and those fixes have been added to version
2.0.7-3.3 of the Debian samba packages."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2001/dsa-048"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected samba package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N");
  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_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:2.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2001/05/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_set_attribute(attribute:"vuln_publication_date", value:"2001/04/17");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 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:"samba", reference:"2.0.7-3.3")) flag++;
if (deb_check(release:"2.2", prefix:"samba-common", reference:"2.0.7-3.3")) flag++;
if (deb_check(release:"2.2", prefix:"samba-doc", reference:"2.0.7-3.3")) flag++;
if (deb_check(release:"2.2", prefix:"smbclient", reference:"2.0.7-3.3")) flag++;
if (deb_check(release:"2.2", prefix:"smbfs", reference:"2.0.7-3.3")) flag++;
if (deb_check(release:"2.2", prefix:"swat", reference:"2.0.7-3.3")) flag++;

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

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2001:040. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(13860);
  script_version ("1.18");
  script_cvs_date("Date: 2019/08/02 13:32:46");

  script_cve_id("CVE-2001-0406");
  script_xref(name:"MDKSA", value:"2001:040-1");

  script_name(english:"Mandrake Linux Security Advisory : samba (MDKSA-2001:040-1)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandrake Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability found by Marcus Meissner exists in Samba where it was
not creating temporary files safely which could allow local users to
overwrite files that they may not have access to. This happens when a
remote user queried a printer queue and samba would create a temporary
file in which the queue's data was written. Because Samba created the
file insecurely and used a predictable filename, a local attacker
could cause Samba to overwrite files that the attacker did not have
access to. As well, the smbclient 'more' and 'mput' commands also
created temporary files insecurely.

The vulnerability is present in Samba 2.0.7 and lower. 2.0.8 and 2.2.0
correct this behaviour.

Update :

The Samba 2.0.8 release did not entirely fix the temporary file issues
in previous versions. The Samba team released 2.0.9 recently which
does fix these problems completely. As well, the 8.0 packages will now
not attempt to use /root/tmp as the temporary directory, but /var/tmp."
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected samba, samba-client and / or samba-common
packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:samba-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:samba-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2001/05/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/31");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"samba-2.0.9-1.2mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"samba-client-2.0.9-1.2mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"samba-common-2.0.9-1.2mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"samba-2.0.9-1.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"samba-client-2.0.9-1.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"samba-common-2.0.9-1.1mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"samba-2.0.9-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"samba-client-2.0.9-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"samba-common-2.0.9-1.3mdk", yank:"mdk")) flag++;


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