Vulnerabilities > CVE-2006-7176 - Localhost.Localdomain Email Spoofing vulnerability in Sendmail 8.13.1.2

#%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-2007:0252 and 
# Oracle Linux Security Advisory ELSA-2007-0252 respectively.
#

include("compat.inc");

if (description)
{
  script_id(67480);
  script_version("1.6");
  script_cvs_date("Date: 2019/10/25 13:36:06");

  script_cve_id("CVE-2006-7176");
  script_xref(name:"RHSA", value:"2007:0252");

  script_name(english:"Oracle Linux 4 : sendmail (ELSA-2007-0252)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2007:0252 :

Updated sendmail packages that fix a security issue and various bugs
are now available for Red Hat Enterprise Linux 4.

This update has been rated as having low security impact by the Red
Hat Security Response Team.

Sendmail is a very widely used Mail Transport Agent (MTA). MTAs
deliver mail from one machine to another. Sendmail is not a client
program, but rather a behind-the-scenes daemon that moves email over
networks or the Internet to its final destination.

The configuration of Sendmail on Red Hat Enterprise Linux was found to
not reject the 'localhost.localdomain' domain name for e-mail messages
that came from external hosts. This could have allowed remote
attackers to disguise spoofed messages (CVE-2006-7176).

This updated package also fixes the following bugs :

* Infinite loop within tls read.

* Incorrect path to selinuxenabled in initscript.

* Build artifacts from sendmail-cf package.

* Missing socketmap support.

* Add support for CipherList configuration directive.

* Path for aliases file.

* Failure of shutting down sm-client.

* Allows to specify persistent queue runners.

* Missing dnl for SMART_HOST define.

* Fixes connections stay in CLOSE_WAIT.

All users of Sendmail should upgrade to these updated packages, which
contains backported patches to resolve these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2007-May/000151.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected sendmail packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:oracle:linux:sendmail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sendmail-cf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sendmail-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:sendmail-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/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/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 4", "Oracle Linux " + 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 && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL4", cpu:"i386", reference:"sendmail-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"sendmail-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"EL4", cpu:"i386", reference:"sendmail-cf-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"sendmail-cf-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"EL4", cpu:"i386", reference:"sendmail-devel-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"sendmail-devel-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"EL4", cpu:"i386", reference:"sendmail-doc-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"EL4", cpu:"x86_64", reference:"sendmail-doc-8.13.1-3.2.el4")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "sendmail / sendmail-cf / sendmail-devel / sendmail-doc");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(60774);
  script_version("1.5");
  script_cvs_date("Date: 2019/10/25 13:36:18");

  script_cve_id("CVE-2006-7176", "CVE-2009-4565");
  script_xref(name:"IAVA", value:"2010-A-0002");

  script_name(english:"Scientific Linux Security Update : sendmail on SL5.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The configuration of sendmail in Scientific Linux was found to not
reject the 'localhost.localdomain' domain name for email messages that
come from external hosts. This could allow remote attackers to
disguise spoofed messages. (CVE-2006-7176)

A flaw was found in the way sendmail handled NUL characters in the
CommonName field of X.509 certificates. An attacker able to get a
carefully-crafted certificate signed by a trusted Certificate
Authority could trick sendmail into accepting it by mistake, allowing
the attacker to perform a man-in-the-middle attack or bypass intended
client certificate authentication. (CVE-2009-4565)

Note: The CVE-2009-4565 issue only affected configurations using TLS
with certificate verification and CommonName checking enabled, which
is not a typical configuration.

This update also fixes the following bugs :

  - sendmail was unable to parse files specified by the
    ServiceSwitchFile option which used a colon as a
    separator. (BZ#512871)

  - sendmail incorrectly returned a zero exit code when free
    space was low. (BZ#299951)

  - the sendmail manual page had a blank space between the
    -qG option and parameter. (BZ#250552)

  - the comments in the sendmail.mc file specified the wrong
    path to SSL certificates. (BZ#244012)

  - the sendmail packages did not provide the MTA
    capability. (BZ#494408)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=244012"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=250552"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=299951"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=494408"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=512871"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1004&L=scientific-linux-errata&T=0&P=917
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?7bf1e947"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cwe_id(310);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL5", reference:"sendmail-8.13.8-8.el5")) flag++;
if (rpm_check(release:"SL5", reference:"sendmail-cf-8.13.8-8.el5")) flag++;
if (rpm_check(release:"SL5", reference:"sendmail-devel-8.13.8-8.el5")) flag++;
if (rpm_check(release:"SL5", reference:"sendmail-doc-8.13.8-8.el5")) 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-2007:0252. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(25142);
  script_version ("1.21");
  script_cvs_date("Date: 2019/10/25 13:36:12");

  script_cve_id("CVE-2006-7176");
  script_xref(name:"RHSA", value:"2007:0252");

  script_name(english:"RHEL 4 : sendmail (RHSA-2007:0252)");
  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 sendmail packages that fix a security issue and various bugs
are now available for Red Hat Enterprise Linux 4.

This update has been rated as having low security impact by the Red
Hat Security Response Team.

Sendmail is a very widely used Mail Transport Agent (MTA). MTAs
deliver mail from one machine to another. Sendmail is not a client
program, but rather a behind-the-scenes daemon that moves email over
networks or the Internet to its final destination.

The configuration of Sendmail on Red Hat Enterprise Linux was found to
not reject the 'localhost.localdomain' domain name for e-mail messages
that came from external hosts. This could have allowed remote
attackers to disguise spoofed messages (CVE-2006-7176).

This updated package also fixes the following bugs :

* Infinite loop within tls read.

* Incorrect path to selinuxenabled in initscript.

* Build artifacts from sendmail-cf package.

* Missing socketmap support.

* Add support for CipherList configuration directive.

* Path for aliases file.

* Failure of shutting down sm-client.

* Allows to specify persistent queue runners.

* Missing dnl for SMART_HOST define.

* Fixes connections stay in CLOSE_WAIT.

All users of Sendmail should upgrade to these updated packages, which
contains backported patches to resolve these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2006-7176"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2007:0252"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:redhat:enterprise_linux:sendmail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sendmail-cf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sendmail-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sendmail-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/05/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 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:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 4.x", "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);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2007:0252";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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:"RHEL4", reference:"sendmail-8.13.1-3.2.el4")) flag++;
  if (rpm_check(release:"RHEL4", reference:"sendmail-cf-8.13.1-3.2.el4")) flag++;
  if (rpm_check(release:"RHEL4", reference:"sendmail-devel-8.13.1-3.2.el4")) flag++;
  if (rpm_check(release:"RHEL4", reference:"sendmail-doc-8.13.1-3.2.el4")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, "sendmail / sendmail-cf / sendmail-devel / sendmail-doc");
  }
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(60169);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/25 13:36:16");

  script_cve_id("CVE-2006-7176");

  script_name(english:"Scientific Linux Security Update : sendmail on SL4.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The configuration of Sendmail was found to not reject the
'localhost.localdomain' domain name for e-mail messages that came from
external hosts. This could have allowed remote attackers to disguise
spoofed messages (CVE-2006-7176)."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind0705&L=scientific-linux-errata&T=0&P=1448
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3360bb5a"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/05/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/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);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
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 (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL4", reference:"sendmail-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"SL4", reference:"sendmail-cf-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"SL4", reference:"sendmail-devel-8.13.1-3.2.el4")) flag++;
if (rpm_check(release:"SL4", reference:"sendmail-doc-8.13.1-3.2.el4")) 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");

#%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-2010:0237. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(46286);
  script_version ("1.31");
  script_cvs_date("Date: 2019/10/25 13:36:15");

  script_cve_id("CVE-2006-7176", "CVE-2009-4565");
  script_bugtraq_id(37543);
  script_xref(name:"RHSA", value:"2010:0237");
  script_xref(name:"IAVA", value:"2010-A-0002");

  script_name(english:"RHEL 5 : sendmail (RHSA-2010:0237)");
  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 sendmail packages that fix two security issues and several
bugs are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having low
security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

Sendmail is a very widely used Mail Transport Agent (MTA). MTAs
deliver mail from one machine to another. Sendmail is not a client
program, but rather a behind-the-scenes daemon that moves email over
networks or the Internet to its final destination.

The configuration of sendmail in Red Hat Enterprise Linux was found to
not reject the 'localhost.localdomain' domain name for email messages
that come from external hosts. This could allow remote attackers to
disguise spoofed messages. (CVE-2006-7176)

A flaw was found in the way sendmail handled NUL characters in the
CommonName field of X.509 certificates. An attacker able to get a
carefully-crafted certificate signed by a trusted Certificate
Authority could trick sendmail into accepting it by mistake, allowing
the attacker to perform a man-in-the-middle attack or bypass intended
client certificate authentication. (CVE-2009-4565)

Note: The CVE-2009-4565 issue only affected configurations using TLS
with certificate verification and CommonName checking enabled, which
is not a typical configuration.

This update also fixes the following bugs :

* sendmail was unable to parse files specified by the
ServiceSwitchFile option which used a colon as a separator.
(BZ#512871)

* sendmail incorrectly returned a zero exit code when free space was
low. (BZ#299951)

* the sendmail manual page had a blank space between the -qG option
and parameter. (BZ#250552)

* the comments in the sendmail.mc file specified the wrong path to SSL
certificates. (BZ#244012)

* the sendmail packages did not provide the MTA capability.
(BZ#494408)

All users of sendmail are advised to upgrade to these updated
packages, which resolve these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2006-7176"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2009-4565"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2010:0237"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  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: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_cwe_id(310);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sendmail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sendmail-cf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sendmail-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sendmail-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/05/11");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 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:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x", "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);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2010:0237";
  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:"RHEL5", cpu:"i386", reference:"sendmail-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"sendmail-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"sendmail-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"sendmail-cf-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"sendmail-cf-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"sendmail-cf-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", reference:"sendmail-devel-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"sendmail-doc-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"sendmail-doc-8.13.8-8.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"sendmail-doc-8.13.8-8.el5")) 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, "sendmail / sendmail-cf / sendmail-devel / sendmail-doc");
  }
}