Vulnerabilities > CVE-2004-0399 - Unspecified vulnerability in University of Cambridge Exim 3.35

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
 script_id(12232);
 script_version("1.23");
 script_cvs_date("Date: 2018/11/15 20:50:24");

 script_cve_id("CVE-2004-0399", "CVE-2004-0400");
 script_xref(name:"Secunia", value:"11558");

 script_name(english:"Exim < 3.36 / 4.33 Multiple Remote Overflows");
 script_summary(english:"Exim Multiple Overflows");

 script_set_attribute(attribute:"synopsis", value:"The remote SMTP server has multiple buffer overflow vulnerabilities.");
 script_set_attribute(attribute:"description", value:
"The remote version of Exim has multiple remote stack-based buffer
overflow vulnerabilities when header syntax checking is enabled. It
should be noted that this is not the default configuration. A remote
attacker could exploit this to execute arbitrary code.");
 script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2004/May/270");
 script_set_attribute(attribute:"solution", value:
"Upgrade to Exim 4.32 or later, or disable header syntax checking in
exim.conf.");
 script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");

 script_set_attribute(attribute:"vuln_publication_date", value:"2004/05/06");
 script_set_attribute(attribute:"plugin_publication_date", value:"2004/05/06");

 script_set_attribute(attribute:"potential_vulnerability", value:"true");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_set_attribute(attribute:"cpe", value:"cpe:/a:exim:exim");
 script_end_attributes();

 script_category(ACT_MIXED_ATTACK);
 script_family(english:"SMTP problems");

 script_copyright(english:"This script is Copyright (C) 2004-2018 Tenable Network Security, Inc.");

 script_dependencie("smtpserver_detect.nasl");	# should we use the result from smtpscan?
 script_require_keys("Settings/ParanoidReport");
 script_require_ports("Services/smtp", 25);

 exit(0);
}

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

port = get_kb_item("Services/smtp");
if(!port) port = 25;
if (! get_port_state(port)) exit(0);

banner = get_smtp_banner(port:port);
if(!banner)exit(0);
if (! egrep(string:banner, pattern:"Exim") ) exit(0);


if (safe_checks()) {
    if(egrep(pattern:"220.*Exim ([0-2]\.|3\.([0-2][0-9]|3[0-5])|4\.([0-2][0-9]|3[0-2]))", string:banner))
    {
      report = string("\nNessus verified this solely by checking the banner.\n");
      security_warning(port);
    }

    exit(0);
} else {
    soc = open_sock_tcp(port);
    if (!soc) exit(0);
    banner = smtp_recv_line(socket:soc);
    if ( ! banner ) exit(0);

    req = string("HELO x.x.x.x\r\n");
    req += string("MAIL FROM: ", crap(300), "@nessus.org\r\n\r\n");
    req += string("RCPT TO: web@localhost\r\n");
    req += string("DATA\r\n");
    req += string("blahblah\r\n.\r\nQUIT\r\n");
    send(socket:soc, data:req);
    r = recv_line(socket:soc, length:512);
    if (!r) { security_warning(port); exit(0); }
    close(soc);

    # non-safe check # 2
    req = string("HELO x.x.x.x\r\n");
    req += string("MAIL FROM: [email protected]\r\n");
    req += string("RCPT TO: web@localhost\r\n");
    req += string("DATA\r\n");
    req += string("From", crap(data:" ", length:275), ":nessus\r\n");
    req += string("blahblah\r\n.\r\nQUIT\r\n");
    soc = open_sock_tcp(port);
    if (!soc) { security_warning(port); exit(0); }
    banner = smtp_recv_line(socket:soc);
    if ( ! banner ) exit(0);
    send(socket:soc, data:req);
    r = recv_line(socket:soc, length:512);
    if (!r) { security_warning(port); exit(0); }
    close (soc);

    # non-safe check # 3
    req = string("HELO x.x.x.x\r\n");
    req += string("MAIL FROM: [email protected]\r\n");
    req += string("RCPT TO: web@localhost\r\n");
    req += string("DATA\r\n");
    req += string("From", crap(data:" ", length:275), ":nessus\r\n");
    req += string("blahblah\r\n.\r\nQUIT\r\n");
    soc = open_sock_tcp(port);
    if (!soc) { security_warning(port); exit(0); }
    banner = smtp_recv_line(socket:soc);
    if ( ! banner ) exit(0);
    send(socket:soc, data:req);
    r = recv_line(socket:soc, length:512);
    if (!r) { security_warning(port); exit(0); }
    close (soc);
    exit(0);
}

#%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-502. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(15339);
  script_version("1.19");
  script_cvs_date("Date: 2019/08/02 13:32:18");

  script_cve_id("CVE-2004-0399", "CVE-2004-0400");
  script_bugtraq_id(10290, 10291);
  script_xref(name:"DSA", value:"502");

  script_name(english:"Debian DSA-502-1 : exim-tls - buffer overflow");
  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:
"Georgi Guninski discovered two stack-based buffer overflows in exim
and exim-tls. They cannot be exploited with the default configuration
from the Debian system, though. The Common Vulnerabilities and
Exposures project identifies the following problems that are fixed
with this update :

  - CAN-2004-0399
    When 'sender_verify = true' is configured in exim.conf a
    buffer overflow can happen during verification of the
    sender. This problem is fixed in exim 4.

  - CAN-2004-0400

    When headers_check_syntax is configured in exim.conf a
    buffer overflow can happen during the header check. This
    problem does also exist in exim 4."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2004/dsa-502"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the exim-tls package.

For the stable distribution (woody) these problems have been fixed in
version 3.35-3woody2."
  );
  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:F/RL:OF/RC:ND");
  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:exim-tls");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/05/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  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:"3.0", prefix:"exim-tls", reference:"3.35-3woody2")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_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 Debian Security Advisory DSA-501. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(15338);
  script_version("1.23");
  script_cvs_date("Date: 2019/08/02 13:32:18");

  script_cve_id("CVE-2004-0399", "CVE-2004-0400");
  script_bugtraq_id(10290, 10291);
  script_xref(name:"DSA", value:"501");

  script_name(english:"Debian DSA-501-1 : exim - buffer overflow");
  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:
"Georgi Guninski discovered two stack-based buffer overflows. They can
not be exploited with the default configuration from the Debian
system, though. The Common Vulnerabilities and Exposures project
identifies the following problems that are fixed with this update :

  - CAN-2004-0399
    When 'sender_verify = true' is configured in exim.conf a
    buffer overflow can happen during verification of the
    sender. This problem is fixed in exim 4.

  - CAN-2004-0400

    When headers_check_syntax is configured in exim.conf a
    buffer overflow can happen during the header check. This
    problem does also exist in exim 4."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2004/dsa-501"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the exim package.

For the stable distribution (woody) these problems have been fixed in
version 3.35-1woody3."
  );
  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: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:exim");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/05/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_set_attribute(attribute:"vuln_publication_date", value:"2004/05/06");
  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:"3.0", prefix:"exim", reference:"3.35-1woody3")) flag++;
if (deb_check(release:"3.0", prefix:"eximon", reference:"3.35-1woody3")) flag++;

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