Vulnerabilities > CVE-2017-7657 - HTTP Request Smuggling vulnerability in multiple products
Summary
In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), transfer-encoding chunks are handled poorly. The chunk length parsing was vulnerable to an integer overflow. Thus a large chunk size could be interpreted as a smaller chunk size and content sent as chunk body could be interpreted as a pipelined request. If Jetty was deployed behind an intermediary that imposed some authorization and that intermediary allowed arbitrarily large chunks to be passed on unchanged, then this flaw could be used to bypass the authorization imposed by the intermediary as the fake pipelined request would not be interpreted by the intermediary as a request.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- HTTP Request Splitting HTTP Request Splitting (also known as HTTP Request Smuggling) is an attack pattern where an attacker attempts to insert additional HTTP requests in the body of the original (enveloping) HTTP request in such a way that the browser interprets it as one request but the web server interprets it as two. There are several ways to perform HTTP request splitting attacks. One way is to include double Content-Length headers in the request to exploit the fact that the devices parsing the request may each use a different header. Another way is to submit an HTTP request with a "Transfer Encoding: chunked" in the request header set with setRequestHeader to allow a payload in the HTTP Request that can be considered as another HTTP Request by a subsequent parsing entity. A third way is to use the "Double CR in an HTTP header" technique. There are also a few less general techniques targeting specific parsing vulnerabilities in certain web servers.
- HTTP Request Smuggling HTTP Request Smuggling results from the discrepancies in parsing HTTP requests between HTTP entities such as web caching proxies or application firewalls. Entities such as web servers, web caching proxies, application firewalls or simple proxies often parse HTTP requests in slightly different ways. Under specific situations where there are two or more such entities in the path of the HTTP request, a specially crafted request is seen by two attacked entities as two different sets of requests. This allows certain requests to be smuggled through to a second entity without the first one realizing it.
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4278.NASL description Multiple vulnerabilities were discovered in Jetty, a Java servlet engine and webserver which could result in HTTP request smuggling. last seen 2020-06-01 modified 2020-06-02 plugin id 111987 published 2018-08-20 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111987 title Debian DSA-4278-1 : jetty9 - security update code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DSA-4278. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(111987); script_version("1.5"); script_cvs_date("Date: 2018/11/13 12:30:47"); script_cve_id("CVE-2017-7656", "CVE-2017-7657", "CVE-2017-7658"); script_xref(name:"DSA", value:"4278"); script_name(english:"Debian DSA-4278-1 : jetty9 - security update"); 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: "Multiple vulnerabilities were discovered in Jetty, a Java servlet engine and webserver which could result in HTTP request smuggling." ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/jetty9" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/stretch/jetty9" ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2018/dsa-4278" ); script_set_attribute( attribute:"solution", value: "Upgrade the jetty9 packages. For the stable distribution (stretch), these problems have been fixed in version 9.2.21-1+deb9u1." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); 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_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:jetty9"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0"); script_set_attribute(attribute:"patch_publication_date", value:"2018/08/19"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/20"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018 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:"9.0", prefix:"jetty9", reference:"9.2.21-1+deb9u1")) flag++; if (deb_check(release:"9.0", prefix:"libjetty9-extra-java", reference:"9.2.21-1+deb9u1")) flag++; if (deb_check(release:"9.0", prefix:"libjetty9-java", reference:"9.2.21-1+deb9u1")) 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 family Fedora Local Security Checks NASL id FEDORA_2018-93A507FD0F.NASL description Update to upstream version 9.4.11. Fixes CVE-2017-7656, CVE-2017-7657, CVE-2017-7658, CVE-2018-12538. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2018-07-13 plugin id 111048 published 2018-07-13 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111048 title Fedora 27 : jetty (2018-93a507fd0f) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2018-93a507fd0f. # include("compat.inc"); if (description) { script_id(111048); script_version("1.6"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-7656", "CVE-2017-7657", "CVE-2017-7658", "CVE-2018-12536", "CVE-2018-12538"); script_xref(name:"FEDORA", value:"2018-93a507fd0f"); script_name(english:"Fedora 27 : jetty (2018-93a507fd0f)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "Update to upstream version 9.4.11. Fixes CVE-2017-7656, CVE-2017-7657, CVE-2017-7658, CVE-2018-12538. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. 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://bodhi.fedoraproject.org/updates/FEDORA-2018-93a507fd0f" ); script_set_attribute(attribute:"solution", value:"Update the affected jetty package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); 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_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:jetty"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:27"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/22"); script_set_attribute(attribute:"patch_publication_date", value:"2018/07/12"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/13"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "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) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^27([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 27", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC27", reference:"jetty-9.4.11-2.v20180605.fc27")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "jetty"); }
NASL family Fedora Local Security Checks NASL id FEDORA_2018-48B73ED393.NASL description Update to upstream version 9.4.11. Fixes CVE-2017-7656, CVE-2017-7657, CVE-2017-7658. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2019-01-03 plugin id 120388 published 2019-01-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120388 title Fedora 28 : jetty (2018-48b73ed393)
Redhat
advisories |
|
Related news
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=535668
- http://www.securitytracker.com/id/1041194
- https://www.debian.org/security/2018/dsa-4278
- https://security.netapp.com/advisory/ntap-20181014-0001/
- https://access.redhat.com/errata/RHSA-2019:0910
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03953en_us
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E
- https://lists.apache.org/thread.html/053d9ce4d579b02203db18545fee5e33f35f2932885459b74d1e4272%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/ra6f956ed4ec2855583b2d0c8b4802b450f593d37b77509b48cd5d574%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r41af10c4adec8d34a969abeb07fd0d6ad0c86768b751464f1cdd23e8%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r9159c9e7ec9eac1613da2dbaddbc15691a13d4dbb2c8be974f42e6ae%40%3Ccommits.druid.apache.org%3E