Vulnerabilities > CVE-2007-0086 - Resource Exhaustion vulnerability in Apache Http Server

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
apache
CWE-400
nessus
NVD
Published: 2007-01-05
Updated: 2024-04-11

Summary

The Apache HTTP Server, when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the severity of this issue has been disputed by third parties, who state that the large window size required by the attack is not normally supported or configured by the server, or that a DDoS-style attack would accomplish the same goal

Vulnerable Configurations

Part Description Count
Application
Apache
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • XML Ping of the Death
    An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
  • XML Entity Expansion
    An attacker submits an XML document to a target application where the XML document uses nested entity expansion to produce an excessively large output XML. XML allows the definition of macro-like structures that can be used to simplify the creation of complex structures. However, this capability can be abused to create excessive demands on a processor's CPU and memory. A small number of nested expansions can result in an exponential growth in demands on memory.
  • Inducing Account Lockout
    An attacker leverages the security functionality of the system aimed at thwarting potential attacks to launch a denial of service attack against a legitimate system user. Many systems, for instance, implement a password throttling mechanism that locks an account after a certain number of incorrect log in attempts. An attacker can leverage this throttling mechanism to lock a legitimate user out of their own account. The weakness that is being leveraged by an attacker is the very security feature that has been put in place to counteract attacks.
  • Violating Implicit Assumptions Regarding XML Content (aka XML Denial of Service (XDoS))
    XML Denial of Service (XDoS) can be applied to any technology that utilizes XML data. This is, of course, most distributed systems technology including Java, .Net, databases, and so on. XDoS is most closely associated with web services, SOAP, and Rest, because remote service requesters can post malicious XML payloads to the service provider designed to exhaust the service provider's memory, CPU, and/or disk space. The main weakness in XDoS is that the service provider generally must inspect, parse, and validate the XML messages to determine routing, workflow, security considerations, and so on. It is exactly these inspection, parsing, and validation routines that XDoS targets. There are three primary attack vectors that XDoS can navigate Target CPU through recursion: attacker creates a recursive payload and sends to service provider Target memory through jumbo payloads: service provider uses DOM to parse XML. DOM creates in memory representation of XML document, but when document is very large (for example, north of 1 Gb) service provider host may exhaust memory trying to build memory objects. XML Ping of death: attack service provider with numerous small files that clog the system. All of the above attacks exploit the loosely coupled nature of web services, where the service provider has little to no control over the service requester and any messages the service requester sends.

Nessus

  • NASL familyMandriva Local Security Checks
    NASL idMANDRIVA_MDVSA-2011-130.NASL
    descriptionMultiple vulnerabilities has been discovered and corrected in apache : The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086 (CVE-2011-3192). The updated packages have been patched to correct this issue.
    last seen2020-06-01
    modified2020-06-02
    plugin id56084
    published2011-09-06
    reporterThis script is Copyright (C) 2011-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/56084
    titleMandriva Linux Security Advisory : apache (MDVSA-2011:130-1)
    code
    #%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2011:130. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(56084);
  script_version("1.20");
  script_cvs_date("Date: 2019/08/02 13:32:54");

  script_cve_id("CVE-2011-3192", "CVE-2011-3348");
  script_bugtraq_id(49303);
  script_xref(name:"MDVSA", value:"2011:130");
  script_xref(name:"MDVSA", value:"2011:130-1");

  script_name(english:"Mandriva Linux Security Advisory : apache (MDVSA-2011:130-1)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities has been discovered and corrected in apache :

The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through
2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a
denial of service (memory and CPU consumption) via a Range header that
expresses multiple overlapping ranges, as exploited in the wild in
August 2011, a different vulnerability than CVE-2007-0086
(CVE-2011-3192).

The updated packages have been patched to correct this issue."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-conf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-htcacheclean");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_authn_dbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_cache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_dav");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_dbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_deflate");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_disk_cache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_file_cache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_mem_cache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_proxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_proxy_ajp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_proxy_scgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_reqtimeout");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_suexec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mod_userdir");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mpm-event");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mpm-itk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mpm-peruser");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mpm-prefork");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-mpm-worker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:apache-source");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2009.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2011");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 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:"MDK2009.0", reference:"apache-base-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-devel-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-htcacheclean-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_authn_dbd-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_cache-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_dav-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_dbd-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_deflate-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_disk_cache-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_file_cache-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_ldap-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_mem_cache-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_proxy-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_proxy_ajp-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_ssl-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mod_userdir-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-modules-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mpm-event-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mpm-itk-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mpm-peruser-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mpm-prefork-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-mpm-worker-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"apache-source-2.2.9-12.12mdv2009.0", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2010.1", reference:"apache-base-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-devel-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-htcacheclean-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_authn_dbd-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_cache-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_dav-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_dbd-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_deflate-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_disk_cache-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_file_cache-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_ldap-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_mem_cache-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_proxy-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_proxy_ajp-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_proxy_scgi-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_reqtimeout-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_ssl-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mod_userdir-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-modules-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mpm-event-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mpm-itk-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mpm-peruser-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mpm-prefork-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-mpm-worker-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"apache-source-2.2.15-3.3mdv2010.2", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2011", reference:"apache-base-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-conf-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-devel-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-doc-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-htcacheclean-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_authn_dbd-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_cache-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_dav-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_dbd-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_deflate-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_disk_cache-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_file_cache-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_ldap-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_mem_cache-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_proxy-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_proxy_ajp-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_proxy_scgi-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_reqtimeout-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_ssl-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_suexec-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mod_userdir-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-modules-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mpm-event-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mpm-itk-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mpm-peruser-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mpm-prefork-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-mpm-worker-2.2.21-0.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"apache-source-2.2.21-0.1-mdv2011.0", yank:"mdv")) 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 familyAmazon Linux Local Security Checks
    NASL idALA_ALAS-2011-01.NASL
    descriptionThe MITRE CVE database describes CVE-2011-3192 as : The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
    last seen2020-06-01
    modified2020-06-02
    plugin id69560
    published2013-09-04
    reporterThis script is Copyright (C) 2013-2015 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/69560
    titleAmazon Linux AMI : httpd (ALAS-2011-01)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2011-01.
#

include("compat.inc");

if (description)
{
  script_id(69560);
  script_version("$Revision: 1.9 $");
  script_cvs_date("$Date: 2015/01/30 14:43:52 $");

  script_cve_id("CVE-2011-3192");
  script_xref(name:"ALAS", value:"2011-01");
  script_xref(name:"RHSA", value:"2011:1245");

  script_name(english:"Amazon Linux AMI : httpd (ALAS-2011-01)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The MITRE CVE database describes CVE-2011-3192 as :

The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through
2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a
denial of service (memory and CPU consumption) via a Range header that
expresses multiple overlapping ranges, as exploited in the wild in
August 2011, a different vulnerability than CVE-2007-0086."
  );
  # http://lists.opensuse.org/opensuse-security-announce/2011-09/msg00006.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4868d419"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.ubuntu.com/usn/USN-1199-1/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2011-1.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Run 'yum upgrade httpd' to upgrade your system. Then run 'service
httpd restart' to restart the Apache HTTP Server."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-manual");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_ssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/09/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2015 Tenable Network Security, Inc.");
  script_family(english:"Amazon Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release")) audit(AUDIT_OS_NOT, "Amazon Linux AMI");
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", reference:"httpd-2.2.21-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"httpd-debuginfo-2.2.21-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"httpd-devel-2.2.21-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"httpd-manual-2.2.21-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"httpd-tools-2.2.21-1.18.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mod_ssl-2.2.21-1.18.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "httpd / httpd-debuginfo / httpd-devel / httpd-manual / httpd-tools / etc");
}

Statements

contributorMark J Cox
lastmodified2007-01-11
organizationRed Hat
statementRed Hat does not consider this issue to be a security vulnerability. The pottential attacker has to send acknowledgement packets periodically to make server generate traffic. Exactly the same effect could be achieved by simply downloading the file. The statement that setting the TCP window size to arbitrarily high value would permit the attacker to disconnect and stop sending ACKs is false, because Red Hat Enterprise Linux limits the size of the TCP send buffer to 4MB by default.

References