5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
0.002 Low
EPSS
Percentile
58.8%
The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 11e36890-d28c-11ec-a06f-d4c9ef517024 advisory.
Using its HSTS support, curl can be instructed to use HTTPS directly insteadof using an insecure clear- text HTTP step even when HTTP is provided in theURL. This mechanism could be bypassed if the host name in the given URL used atrailing dot while not using one when it built the HSTS cache. Or the otherway around
A use of incorrectly resolved name vulnerability fixed in 7.83.1 might remove the wrong file when --no- clobber
is used together with --remove-on-error
. (CVE-2022-27778)
libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl’s cookie engine can bebuilt with or without Public Suffix Listawareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain. (CVE-2022-27779)
The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a different URL usingthe wrong host name when it is later retrieved.For example, a URL like http://example.com%2F127.0.0.1/
, would be allowed bythe parser and get transposed into http://example.com/127.0.0.1/
. This flawcan be used to circumvent filters, checks and more.
(CVE-2022-27780)
libcurl provides the CURLOPT_CERTINFO
option to allow applications torequest details to be returned about a server’s certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.
(CVE-2022-27781)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable, Inc.
#
# @NOAGENT@
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2021 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('compat.inc');
if (description)
{
script_id(161169);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/27");
script_cve_id(
"CVE-2022-27778",
"CVE-2022-27779",
"CVE-2022-27780",
"CVE-2022-27781",
"CVE-2022-27782",
"CVE-2022-30115"
);
script_xref(name:"IAVA", value:"2022-A-0224-S");
script_name(english:"FreeBSD : curl -- Multiple vulnerabilities (11e36890-d28c-11ec-a06f-d4c9ef517024)");
script_set_attribute(attribute:"synopsis", value:
"The remote FreeBSD host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple
vulnerabilities as referenced in the 11e36890-d28c-11ec-a06f-d4c9ef517024 advisory.
- Using its HSTS support, curl can be instructed to use HTTPS directly insteadof using an insecure clear-
text HTTP step even when HTTP is provided in theURL. This mechanism could be bypassed if the host name in
the given URL used atrailing dot while not using one when it built the HSTS cache. Or the otherway around
- by having the trailing dot in the HSTS cache and *not* using thetrailing dot in the URL.
(CVE-2022-30115)
- A use of incorrectly resolved name vulnerability fixed in 7.83.1 might remove the wrong file when `--no-
clobber` is used together with `--remove-on-error`. (CVE-2022-27778)
- libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a
trailing dot.curl can be told to receive and send cookies. curl's cookie engine can bebuilt with or
without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more
rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if
thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would
get sent to adifferent and unrelated site or domain. (CVE-2022-27779)
- The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name
part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For
example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed
into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.
(CVE-2022-27780)
- libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned
about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl
built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.
(CVE-2022-27781)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://curl.se/docs/security.html");
# https://vuxml.freebsd.org/freebsd/11e36890-d28c-11ec-a06f-d4c9ef517024.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3b8ea2b2");
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:P");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-27778");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/05/11");
script_set_attribute(attribute:"patch_publication_date", value:"2022/05/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:curl");
script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
script_set_attribute(attribute:"stig_severity", value:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"FreeBSD Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
exit(0);
}
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);
var flag = 0;
var packages = [
'curl<7.83.1'
];
foreach var package( packages ) {
if (pkg_test(save_report:TRUE, pkg: package)) flag++;
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : pkg_report_get()
);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27778
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27779
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27780
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27781
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27782
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30115
www.nessus.org/u?3b8ea2b2
curl.se/docs/security.html
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
0.002 Low
EPSS
Percentile
58.8%