Vulnerabilities > CVE-2003-0693 - Unspecified vulnerability in Openbsd Openssh

#%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-2003:090. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(14072);
  script_version ("1.23");
  script_cvs_date("Date: 2019/08/02 13:32:47");

  script_cve_id("CVE-2003-0693", "CVE-2003-0695");
  script_xref(name:"CERT-CC", value:"CA-2003-24");
  script_xref(name:"CERT", value:"333628");
  script_xref(name:"MDKSA", value:"2003:090-1");

  script_name(english:"Mandrake Linux Security Advisory : openssh (MDKSA-2003:090-1)");
  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 buffer management error was discovered in all versions of openssh
prior to version 3.7. According to the OpenSSH team's advisory: 'It is
uncertain whether this error is potentially exploitable, however, we
prefer to see bugs fixed proactively.' There have also been reports of
an exploit in the wild.

MandrakeSoft encourages all users to upgrade to these patched openssh
packages immediately and to disable sshd until you are able to upgrade
if at all possible.

Update :

The OpenSSH developers discovered more, similar, problems and revised
the patch to correct these issues. These new packages have the latest
patch fix applied."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.openssh.com/txt/buffer.adv"
  );
  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:openssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:openssh-askpass");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:openssh-askpass-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:openssh-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:openssh-server");
  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:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:9.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2003/09/17");
  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:"MDK8.2", cpu:"i386", reference:"openssh-3.6.1p2-1.2.82mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"openssh-askpass-3.6.1p2-1.2.82mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"openssh-askpass-gnome-3.6.1p2-1.2.82mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"openssh-clients-3.6.1p2-1.2.82mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"openssh-server-3.6.1p2-1.2.82mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"openssh-3.6.1p2-1.2.90mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"openssh-askpass-3.6.1p2-1.2.90mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"openssh-askpass-gnome-3.6.1p2-1.2.90mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"openssh-clients-3.6.1p2-1.2.90mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"openssh-server-3.6.1p2-1.2.90mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"openssh-3.6.1p2-1.2.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"openssh-askpass-3.6.1p2-1.2.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"openssh-askpass-gnome-3.6.1p2-1.2.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"openssh-clients-3.6.1p2-1.2.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"openssh-server-3.6.1p2-1.2.91mdk", 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_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-2003:280. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(12421);
  script_version ("1.23");
  script_cvs_date("Date: 2019/10/25 13:36:10");

  script_cve_id("CVE-2003-0682", "CVE-2003-0693", "CVE-2003-0695");
  script_xref(name:"RHSA", value:"2003:280");

  script_name(english:"RHEL 2.1 : openssh (RHSA-2003:280)");
  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 OpenSSH packages are now available that fix bugs that may be
remotely exploitable.

[Updated 17 Sep 2003] Updated packages are now available to fix
additional buffer manipulation problems which were fixed in OpenSSH
3.7.1. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2003-0695 to these
additional issues.

We have also included fixes from Solar Designer for some additional
memory bugs. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2003-0682 to these issues.

OpenSSH is a suite of network connectivity tools that can be used to
establish encrypted connections between systems on a network and can
provide interactive login sessions and port forwarding, among other
functions.

The OpenSSH team has announced a bug which affects the OpenSSH buffer
handling code. This bug has the potential of being remotely
exploitable. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2003-0693 to this issue.

All users of OpenSSH should immediately apply this update which
contains a backported fix for this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2003-0682"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2003-0693"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2003-0695"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.openssh.com/txt/buffer.adv"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2003:280"
  );
  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_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:redhat:enterprise_linux:openssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-askpass");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-askpass-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openssh-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2003/09/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2003/09/17");
  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-2003:280";
  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:"openssh-3.1p1-14")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssh-askpass-3.1p1-14")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssh-askpass-gnome-3.1p1-14")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssh-clients-3.1p1-14")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"openssh-server-3.1p1-14")) 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, "openssh / openssh-askpass / openssh-askpass-gnome / openssh-clients / etc");
  }
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# This plugin text was extracted from SuSE Security Advisory SUSE-SA:2003:038
#


if ( ! defined_func("bn_random") ) exit(0);

include("compat.inc");

if(description)
{
 script_id(13806);
 script_version ("1.13");
 script_cvs_date("Date: 2019/10/25 13:36:27");
 
 name["english"] = "SUSE-SA:2003:038: openssh";
 
 script_name(english:name["english"]);
 
 script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a vendor-supplied security patch" );
 script_set_attribute(attribute:"description", value:
"The remote host is missing the patch for the advisory SUSE-SA:2003:038 (openssh).


The openssh package is the most widely used implementation of the secure
shell protocol family (ssh). It provides a set of network connectivity
tools for remote (shell) login, designed to substitute the traditional
BSD-style r-protocols (rsh, rlogin). openssh has various authentification
mechanisms and many other features such as TCP connection and X11 display
forwarding over the fully encrypted network connection as well as file
transfer facilities.

A programming error has been found in code responsible for buffer
management. If exploited by a (remote) attacker, the error may lead to
unauthorized access to the system, allowing the execution of arbitrary
commands.
The error is known as the buffer_append_space()-bug and is assigned the
Common Vulnerabilities and Exposures (CVE) name CVE-2003-0693.

At the time of writing this announcement, it is unclear if the
buffer_append_space()-bug is exploitable. However, an increasing amount
of TCP connection attempts to port 22 (the ssh default port) has been
observed in the internet during the past days, which may indicate that
there exists an exploit for the error.

Please note that we have disabled the Privilege Separation feature in
the ssh daemon (sshd) with this update. The PrivSep feature is designed
to have parts of the ssh daemon's work running under lowered privileges,
thereby limiting the effect of a possible vulnerability in the code. The
PrivSep feature is turned on/off by the UsePrivilegeSeparation keyword
in sshd's configuration file /etc/ssh/sshd_config. The feature is held
responsible for malfunctions in PAM (Pluggable Authentification Modules).
The update mechanism will not overwrite configuration files that have
been altered after the package installation." );
 script_set_attribute(attribute:"solution", value:
"http://www.suse.de/security/2003_038_openssh.html" );
 script_set_attribute(attribute:"risk_factor", value:"High" );



 script_set_attribute(attribute:"plugin_publication_date", value: "2004/07/25");
 script_end_attributes();

 
 summary["english"] = "Check for the version of the openssh package";
 script_summary(english:summary["english"]);
 
 script_category(ACT_GATHER_INFO);
 
 script_copyright(english:"This script is Copyright (C) 2004-2019 Tenable Network Security, Inc.");
 family["english"] = "SuSE Local Security Checks";
 script_family(english:family["english"]);
 
 script_dependencies("ssh_get_info.nasl");
 script_require_keys("Host/SuSE/rpm-list");
 exit(0);
}

include("rpm.inc");
if ( rpm_check( reference:"openssh-2.9.9p2-155", release:"SUSE7.2") )
{
 security_hole(0);
 exit(0);
}
if ( rpm_check( reference:"openssh-2.9.9p2-155", release:"SUSE7.3") )
{
 security_hole(0);
 exit(0);
}
if ( rpm_check( reference:"openssh-3.4p1-214", release:"SUSE8.0") )
{
 security_hole(0);
 exit(0);
}
if ( rpm_check( reference:"openssh-3.4p1-214", release:"SUSE8.1") )
{
 security_hole(0);
 exit(0);
}
if ( rpm_check( reference:"openssh-3.5p1-106", release:"SUSE8.2") )
{
 security_hole(0);
 exit(0);
}

• name	Jay Beale
  organization	Bastille Linux

• name	Jay Beale
  organization	Bastille Linux

• name	Thomas R. Jones
  organization	Maitreya Security

• name	Jonathan Baker
  organization	The MITRE Corporation