Vulnerabilities > CVE-2017-11521 - Resource Exhaustion vulnerability in multiple products

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
resiprocate
debian
CWE-400
nessus
exploit available
NVD
Published: 2017-07-22
Updated: 2022-04-06

Summary

The SdpContents::Session::Medium::parse function in resip/stack/SdpContents.cxx in reSIProcate 1.10.2 allows remote attackers to cause a denial of service (memory consumption) by triggering many media connections.

Vulnerable Configurations

Part Description Count
Application
Resiprocate
1
OS
Debian
2

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.

Exploit-Db

descriptionreSIProcate 1.10.2 - Heap Overflow. CVE-2018-12584. Dos exploit for Multiple platform. Tags: Heap Overflow
fileexploits/multiple/dos/45174.py
idEDB-ID:45174
last seen2018-08-09
modified2018-08-09
platformmultiple
port5061
published2018-08-09
reporterExploit-DB
sourcehttps://www.exploit-db.com/download/45174/
titlereSIProcate 1.10.2 - Heap Overflow
typedos

Nessus

  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-1439.NASL
    descriptionCVE-2018-12584 A flaw in function ConnectionBase::preparseNewBytes of resip/stack/ConnectionBase.cxx has been detected, that allows remote attackers to cause a denial of service (buffer overflow) or possibly execute arbitrary code when TLS communication is enabled. CVE-2017-11521 A flaw in function SdpContents::Session::Medium::parse of resip/stack/SdpContents.cxx has been detected, that allows remote attackers to cause a denial of service (memory consumption) by triggering many media connections. For Debian 8
    last seen2020-06-01
    modified2020-06-02
    plugin id111311
    published2018-07-25
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/111311
    titleDebian DLA-1439-1 : resiprocate security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1439-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(111311);
  script_version("1.4");
  script_cvs_date("Date: 2019/04/05 23:25:05");

  script_cve_id("CVE-2017-11521", "CVE-2018-12584");

  script_name(english:"Debian DLA-1439-1 : resiprocate security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2018-12584 A flaw in function ConnectionBase::preparseNewBytes of
resip/stack/ConnectionBase.cxx has been detected, that allows remote
attackers to cause a denial of service (buffer overflow) or possibly
execute arbitrary code when TLS communication is enabled.

CVE-2017-11521 A flaw in function SdpContents::Session::Medium::parse
of resip/stack/SdpContents.cxx has been detected, that allows remote
attackers to cause a denial of service (memory consumption) by
triggering many media connections.

For Debian 8 'Jessie', these problems have been fixed in version
1:1.9.7-5+deb8u1.

We recommend that you upgrade your resiprocate packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2018/07/msg00031.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/resiprocate"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade 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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/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:librecon-1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:librecon-1.9-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libresiprocate-1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libresiprocate-1.9-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libresiprocate-turn-client-1.9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libresiprocate-turn-client-1.9-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:repro");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:resiprocate-turn-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:sipdialer");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"8.0", prefix:"librecon-1.9", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"librecon-1.9-dev", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libresiprocate-1.9", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libresiprocate-1.9-dev", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libresiprocate-turn-client-1.9", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libresiprocate-turn-client-1.9-dev", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"repro", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"resiprocate-turn-server", reference:"1:1.9.7-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"sipdialer", reference:"1:1.9.7-5+deb8u1")) 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 familyDebian Local Security Checks
    NASL idDEBIAN_DLA-1040.NASL
    descriptionCVE-2017-11521 The SdpContents::Session::Medium::parse function in resip/stack/SdpContents.cxx in reSIProcate 1.10.2 allows remote attackers to cause a denial of service (memory consumption) by triggering many media connections. For Debian 7
    last seen2020-03-17
    modified2017-07-27
    plugin id101982
    published2017-07-27
    reporterThis script is Copyright (C) 2017-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/101982
    titleDebian DLA-1040-1 : resiprocate security update
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1040-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(101982);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2017-11521");

  script_name(english:"Debian DLA-1040-1 : resiprocate security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2017-11521 The SdpContents::Session::Medium::parse function in
resip/stack/SdpContents.cxx in reSIProcate 1.10.2 allows remote
attackers to cause a denial of service (memory consumption) by
triggering many media connections.

For Debian 7 'Wheezy', these problems have been fixed in version
1.8.5-4+deb7u1.

We recommend that you upgrade your resiprocate packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2017/07/msg00033.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/resiprocate"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:debian:debian_linux:libresiprocate-1.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libresiprocate-1.8-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libresiprocate-turn-client-1.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libresiprocate-turn-client-1.8-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:repro");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:resiprocate-turn-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:sipdialer");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 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:"7.0", prefix:"libresiprocate-1.8", reference:"1.8.5-4+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libresiprocate-1.8-dev", reference:"1.8.5-4+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libresiprocate-turn-client-1.8", reference:"1.8.5-4+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libresiprocate-turn-client-1.8-dev", reference:"1.8.5-4+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"repro", reference:"1.8.5-4+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"resiprocate-turn-server", reference:"1.8.5-4+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"sipdialer", reference:"1.8.5-4+deb7u1")) flag++;

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

Packetstorm

data sourcehttps://packetstormsecurity.com/files/download/148856/resiprocate-overflow.txt
idPACKETSTORM:148856
last seen2018-08-09
published2018-08-08
reporterJoachim De Zutter
sourcehttps://packetstormsecurity.com/files/148856/reSIProcate-1.10.2-Heap-Overflow.html
titlereSIProcate 1.10.2 Heap Overflow

References