Vulnerabilities > CVE-2003-0041 - OS Command Injection vulnerability in multiple products

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
mit
redhat
mandrakesoft
CWE-78
nessus
NVD
Published: 2003-02-19
Updated: 2024-02-02

Summary

Kerberos FTP client allows remote FTP sites to execute arbitrary code via a pipe (|) character in a filename that is retrieved by the client.

Vulnerable Configurations

Part Description Count
Application
Mit
1
Application
Mandrakesoft
1
OS
Redhat
6
OS
Mandrakesoft
3

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
  • Command Delimiters
    An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or a blacklist input validation, as opposed to whitelist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or blacklist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
  • Exploiting Multiple Input Interpretation Layers
    An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
  • Argument Injection
    An attacker changes the behavior or state of a targeted application through injecting data or command syntax through the targets use of non-validated and non-filtered arguments of exposed services or methods.
  • OS Command Injection
    In this type of an attack, an adversary injects operating system commands into existing application functions. An application that uses untrusted input to build command strings is vulnerable. An adversary can leverage OS command injection in an application to elevate privileges, execute arbitrary commands and compromise the underlying operating system.

Nessus

  • NASL familyMandriva Local Security Checks
    NASL idMANDRAKE_MDKSA-2003-021.NASL
    descriptionA vulnerability was discovered in the Kerberos FTP client. When the client retrieves a file that has a filename beginning with a pipe character, the FTP client will pass that filename to the command shell in a system() call. This could allow a malicious remote FTP server to write to files outside of the current directory or even execute arbitrary commands as the user using the FTP client.
    last seen2020-06-01
    modified2020-06-02
    plugin id14006
    published2004-07-31
    reporterThis script is Copyright (C) 2004-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/14006
    titleMandrake Linux Security Advisory : krb5 (MDKSA-2003:021)
    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-2003:021. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(14006);
  script_version ("1.18");
  script_cvs_date("Date: 2019/08/02 13:32:46");

  script_cve_id("CVE-2003-0041");
  script_xref(name:"MDKSA", value:"2003:021");

  script_name(english:"Mandrake Linux Security Advisory : krb5 (MDKSA-2003:021)");
  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 was discovered in the Kerberos FTP client. When the
client retrieves a file that has a filename beginning with a pipe
character, the FTP client will pass that filename to the command shell
in a system() call. This could allow a malicious remote FTP server to
write to files outside of the current directory or even execute
arbitrary commands as the user using the FTP client."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:mandriva:linux:ftp-client-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ftp-server-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:telnet-client-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:telnet-server-krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2003/02/21");
  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:"MDK8.1", cpu:"i386", reference:"ftp-client-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"ftp-server-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"krb5-devel-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"krb5-libs-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"krb5-server-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"krb5-workstation-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"telnet-client-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"telnet-server-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"ftp-client-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"ftp-server-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"krb5-devel-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"krb5-libs-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"krb5-server-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"krb5-workstation-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"telnet-client-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"telnet-server-krb5-1.2.2-17.4mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"ftp-client-krb5-1.2.5-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"ftp-server-krb5-1.2.5-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"krb5-devel-1.2.5-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"krb5-libs-1.2.5-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"krb5-server-1.2.5-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"krb5-workstation-1.2.5-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"telnet-client-krb5-1.2.5-1.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"telnet-server-krb5-1.2.5-1.3mdk", yank:"mdk")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2003-021.NASL
    descriptionUpdated packages fix a vulnerability found in the Kerberos FTP client distributed with the Red Hat Linux Advanced Server krb5 packages. [Updated 06 Feb 2003] Added fixed packages for Advanced Workstation 2.1. For Advanced Workstation 2.1 these packages also fix CVE-2002-1235 as described in RHSA-2002:250 Kerberos is a network authentication system. A problem has been found in the Kerberos FTP client. When retrieving a file with a name beginning with a pipe character, the FTP client will pass the file name to the command shell in a system() call. This could allow a malicious FTP server to write to files outside of the current directory or execute commands as the user running the FTP client. The Kerberos FTP client runs as the default FTP client when the Kerberos package krb5-workstation is installed on a Red Hat Linux Advanced Server distribution. All users of Kerberos are advised to upgrade to these errata packages which contain a backported patch and are not vulnerable to this issue.
    last seen2020-06-01
    modified2020-06-02
    plugin id12353
    published2004-07-06
    reporterThis script is Copyright (C) 2004-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/12353
    titleRHEL 2.1 : krb5 (RHSA-2003:021)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2003:021. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(12353);
  script_version ("1.23");
  script_cvs_date("Date: 2019/10/25 13:36:10");

  script_cve_id("CVE-2003-0041");
  script_xref(name:"CERT", value:"258721");
  script_xref(name:"RHSA", value:"2003:021");

  script_name(english:"RHEL 2.1 : krb5 (RHSA-2003:021)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated packages fix a vulnerability found in the Kerberos FTP client
distributed with the Red Hat Linux Advanced Server krb5 packages.

[Updated 06 Feb 2003] Added fixed packages for Advanced Workstation
2.1. For Advanced Workstation 2.1 these packages also fix
CVE-2002-1235 as described in RHSA-2002:250

Kerberos is a network authentication system.

A problem has been found in the Kerberos FTP client. When retrieving a
file with a name beginning with a pipe character, the FTP client will
pass the file name to the command shell in a system() call. This could
allow a malicious FTP server to write to files outside of the current
directory or execute commands as the user running the FTP client.

The Kerberos FTP client runs as the default FTP client when the
Kerberos package krb5-workstation is installed on a Red Hat Linux
Advanced Server distribution.

All users of Kerberos are advised to upgrade to these errata packages
which contain a backported patch and are not vulnerable to this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2003-0041"
  );
  # http://marc.theaimsgroup.com/?l=bugtraq&m=87602746719482
  script_set_attribute(
    attribute:"see_also",
    value:"https://marc.info/?l=bugtraq&m=87602746719482"
  );
  # http://marc.theaimsgroup.com/?l=bugtraq&m=87602746719527
  script_set_attribute(
    attribute:"see_also",
    value:"https://marc.info/?l=bugtraq&m=87602746719527"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2003:021"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:redhat:enterprise_linux:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2003/02/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2003/02/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^2\.1([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if (cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i386", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2003:021";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"krb5-devel-1.2.2-16")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"krb5-libs-1.2.2-16")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"krb5-server-1.2.2-16")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"krb5-workstation-1.2.2-16")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-devel / krb5-libs / krb5-server / krb5-workstation");
  }
}

Redhat

advisories
rhsa
idRHSA-2003:020

References