Vulnerabilities > CVE-2000-1108 - Unspecified vulnerability in Midnight Commander Midnight Commander 4.5.42

047910
CVSS 4.6 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
low complexity
midnight-commander
nessus

Summary

cons.saver in Midnight Commander (mc) 4.5.42 and earlier does not properly verify if an output file descriptor is a TTY, which allows local users to corrupt files by creating a symbolic link to the target file, calling mc, and specifying that link as a TTY argument.

Vulnerable Configurations

Part Description Count
Application
Midnight_Commander
1

Nessus

NASL familyMandriva Local Security Checks
NASL idMANDRAKE_MDKSA-2000-078.NASL
descriptionA problem was found in the cons.saver program by Maurycy Prodeus. The cons.saver program is a screensaver for the console that is included in the mc package. cons.saver does not check if it is started with a valid stdout, which combined with a bug in its check to see if its argument is a tty (it forgets to close the file-descriptor after opening the supposed tty), causes it to write a NULL character to the file given as its parameter.
last seen2020-06-01
modified2020-06-02
plugin id61864
published2012-09-06
reporterThis script is Copyright (C) 2012-2019 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/61864
titleMandrake Linux Security Advisory : mc (MDKSA-2000:078)
code
#%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-2000:078. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(61864);
  script_version("1.5");
  script_cvs_date("Date: 2019/08/02 13:32:46");

  script_cve_id("CVE-2000-1108");
  script_xref(name:"MDKSA", value:"2000:078");

  script_name(english:"Mandrake Linux Security Advisory : mc (MDKSA-2000:078)");
  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 problem was found in the cons.saver program by Maurycy Prodeus. The
cons.saver program is a screensaver for the console that is included
in the mc package. cons.saver does not check if it is started with a
valid stdout, which combined with a bug in its check to see if its
argument is a tty (it forgets to close the file-descriptor after
opening the supposed tty), causes it to write a NULL character to the
file given as its parameter."
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected gmc, mc and / or mcserv packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:gmc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:mc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:mcserv");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:6.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.0");
  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:"patch_publication_date", value:"2000/12/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/09/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2019 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:"MDK6.0", cpu:"i386", reference:"gmc-4.5.31-14.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK6.0", cpu:"i386", reference:"mc-4.5.31-14.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK6.0", cpu:"i386", reference:"mcserv-4.5.31-14.1mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK6.1", cpu:"i386", reference:"gmc-4.5.38-4.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK6.1", cpu:"i386", reference:"mc-4.5.38-4.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK6.1", cpu:"i386", reference:"mcserv-4.5.38-4.1mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK7.0", cpu:"i386", reference:"gmc-4.5.42-4.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.0", cpu:"i386", reference:"mc-4.5.42-4.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.0", cpu:"i386", reference:"mcserv-4.5.42-4.1mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"gmc-4.5.46-1.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"mc-4.5.46-1.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"mcserv-4.5.46-1.1mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"gmc-4.5.51-7.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"mc-4.5.51-7.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"mcserv-4.5.51-7.1mdk", yank:"mdk")) flag++;


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