Vulnerabilities > CVE-2016-10026 - Improper Access Control vulnerability in Ikiwiki 3.20161219
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
ikiwiki 3.20161219 does not properly check if a revision changes the access permissions for a page on sites with the git and recentchanges plugins and the CGI interface enabled, which allows remote attackers to revert certain changes by leveraging permissions to change the page before the revision was made.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Embedding Scripts within Scripts An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
- Signature Spoofing by Key Theft An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
Nessus
NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_5ED094A0015011E7AE1B002590263BF5.NASL description Mitre reports : ikiwiki 3.20161219 does not properly check if a revision changes the access permissions for a page on sites with the git and recentchanges plugins and the CGI interface enabled, which allows remote attackers to revert certain changes by leveraging permissions to change the page before the revision was made. When CGI::FormBuilder->field( last seen 2020-06-01 modified 2020-06-02 plugin id 97544 published 2017-03-06 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97544 title FreeBSD : ikiwiki -- multiple vulnerabilities (5ed094a0-0150-11e7-ae1b-002590263bf5) code # # (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("compat.inc"); if (description) { script_id(97544); script_version("3.2"); script_cvs_date("Date: 2018/11/10 11:49:46"); script_cve_id("CVE-2016-10026", "CVE-2016-9645", "CVE-2016-9646"); script_name(english:"FreeBSD : ikiwiki -- multiple vulnerabilities (5ed094a0-0150-11e7-ae1b-002590263bf5)"); script_summary(english:"Checks for updated package in pkg_info output"); script_set_attribute( attribute:"synopsis", value:"The remote FreeBSD host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Mitre reports : ikiwiki 3.20161219 does not properly check if a revision changes the access permissions for a page on sites with the git and recentchanges plugins and the CGI interface enabled, which allows remote attackers to revert certain changes by leveraging permissions to change the page before the revision was made. When CGI::FormBuilder->field('foo') is called in list context (and in particular in the arguments to a subroutine that takes named arguments), it can return zero or more values for foo from the CGI request, rather than the expected single value. This breaks the usual Perl parsing convention for named arguments, similar to CVE-2014-1572 in Bugzilla (which was caused by a similar API design issue in CGI.pm)." ); script_set_attribute( attribute:"see_also", value:"https://ikiwiki.info/security/#index46h2" ); script_set_attribute( attribute:"see_also", value:"https://ikiwiki.info/security/#index47h2" ); # https://vuxml.freebsd.org/freebsd/5ed094a0-0150-11e7-ae1b-002590263bf5.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?39a51429" ); script_set_attribute(attribute:"solution", value:"Update the affected package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:ikiwiki"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/12/19"); script_set_attribute(attribute:"patch_publication_date", value:"2017/03/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/06"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2018 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:"ikiwiki<3.20161229")) 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");
NASL family Debian Local Security Checks NASL id DEBIAN_DLA-812.NASL description Several vulnerabilities have been found in ikiwiki, a wiki compiler : CVE-2016-9646 Commit metadata forgery CVE-2016-10026 Authorization bypass when reverting changes CVE-2017-0356 Authentication bypass via repeated parameters For Debian 7 last seen 2020-03-17 modified 2017-02-01 plugin id 96911 published 2017-02-01 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96911 title Debian DLA-812-1 : ikiwiki security update NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3760.NASL description Multiple vulnerabilities have been found in the Ikiwiki wiki compiler : - CVE-2016-9646 Commit metadata forgery via CGI::FormBuilder context-dependent APIs - CVE-2016-10026 Editing restriction bypass for git revert - CVE-2017-0356 Authentication bypass via repeated parameters Additional details on these vulnerabilities can be found at https://ikiwiki.info/security/ last seen 2020-06-01 modified 2020-06-02 plugin id 96462 published 2017-01-13 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96462 title Debian DSA-3760-1 : ikiwiki - security update NASL family Fedora Local Security Checks NASL id FEDORA_2017-8873EBDB43.NASL description Update to the latest stable version. See https://ikiwiki.info/news/ for the list of changes. Security fix for CVE-2016-10026, CVE-2016-9646, CVE-2017-0356. 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 2017-01-31 plugin id 96895 published 2017-01-31 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96895 title Fedora 24 : ikiwiki (2017-8873ebdb43) NASL family Fedora Local Security Checks NASL id FEDORA_2017-C756D37779.NASL description Update to the latest stable version. See https://ikiwiki.info/news/ for the list of changes. Security fix for CVE-2016-10026, CVE-2016-9646, CVE-2017-0356. 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 2017-01-30 plugin id 96848 published 2017-01-30 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96848 title Fedora 25 : ikiwiki (2017-c756d37779)