4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
3.7 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
0.007 Low
EPSS
Percentile
80.8%
Daniel Knoppel reports :
It was discovered by the SUSE security team that it was possible, in some cases, for clients to overwrite headers set by the server, resulting in a medium level security issue. CVE-2015-7519 has been assigned to this issue.
Affected use-cases :
Header overwriting may occur if all of the following conditions are met :
Apache integration mode, or standalone+builtin engine without a filtering proxy
Ruby or Python applications only (Passenger 5); or any application (Passenger 4)
The app depends on a request header containing a dash (-)
The header is supposed to be trusted (set by the server)
The client correctly guesses the header name
This vulnerability has been fixed by filtering out client headers that do not consist of alphanumeric/dash characters (Nginx already did this, so Passenger+Nginx was not affected). If your application depends on headers that don’t conform to this, you can add a workaround in Apache specifically for those to convert them to a dash-based format.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
# copyright notice, this list of conditions and the following
# disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
# published online in any format, converted to PDF, PostScript,
# RTF and other formats) must reproduce the above copyright
# notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(87226);
script_version("2.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2015-7519");
script_name(english:"FreeBSD : passenger -- client controlled header overwriting (84fdd1bb-9d37-11e5-8f5c-002590263bf5)");
script_summary(english:"Checks for updated packages in pkg_info output");
script_set_attribute(
attribute:"synopsis",
value:
"The remote FreeBSD host is missing one or more security-related
updates."
);
script_set_attribute(
attribute:"description",
value:
"Daniel Knoppel reports :
It was discovered by the SUSE security team that it was possible, in
some cases, for clients to overwrite headers set by the server,
resulting in a medium level security issue. CVE-2015-7519 has been
assigned to this issue.
Affected use-cases :
Header overwriting may occur if all of the following conditions are
met :
- Apache integration mode, or standalone+builtin engine without a
filtering proxy
- Ruby or Python applications only (Passenger 5); or any application
(Passenger 4)
- The app depends on a request header containing a dash (-)
- The header is supposed to be trusted (set by the server)
- The client correctly guesses the header name
This vulnerability has been fixed by filtering out client headers that
do not consist of alphanumeric/dash characters (Nginx already did
this, so Passenger+Nginx was not affected). If your application
depends on headers that don't conform to this, you can add a
workaround in Apache specifically for those to convert them to a
dash-based format."
);
script_set_attribute(
attribute:"see_also",
value:"https://blog.phusion.nl/2015/12/07/cve-2015-7519/"
);
# https://vuxml.freebsd.org/freebsd/84fdd1bb-9d37-11e5-8f5c-002590263bf5.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?f65489f9"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:rubygem-passenger");
script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/07");
script_set_attribute(attribute:"patch_publication_date", value:"2015/12/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/08");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"FreeBSD Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
exit(0);
}
include("audit.inc");
include("freebsd_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (pkg_test(save_report:TRUE, pkg:"rubygem-passenger>=5.0.0<5.0.22")) flag++;
if (pkg_test(save_report:TRUE, pkg:"rubygem-passenger<4.0.60")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
freebsd | freebsd | rubygem-passenger | p-cpe:/a:freebsd:freebsd:rubygem-passenger |
freebsd | freebsd | cpe:/o:freebsd:freebsd |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
3.7 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
0.007 Low
EPSS
Percentile
80.8%