Vulnerabilities > CVE-2016-9575 - Improper Authorization vulnerability in Freeipa
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
LOW Integrity impact
LOW Availability impact
LOW Summary
Ipa versions 4.2.x, 4.3.x before 4.3.3 and 4.4.x before 4.4.3 did not properly check the user's permissions while modifying certificate profiles in IdM's certprofile-mod command. An authenticated, unprivileged attacker could use this flaw to modify profiles to issue certificates with arbitrary naming or key usage information and subsequently use such certificates for other attacks.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 12 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Accessing Functionality Not Properly Constrained by ACLs In applications, particularly web applications, access to functionality is mitigated by the authorization framework, whose job it is to map ACLs to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application or can run queries for data that he is otherwise not supposed to.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Directory Indexing An adversary crafts a request to a target that results in the target listing/indexing the content of a directory as output. One common method of triggering directory contents as output is to construct a request containing a path that terminates in a directory name rather than a file name since many applications are configured to provide a list of the directory's contents when such a request is received. An adversary can use this to explore the directory tree on a target as well as learn the names of files. This can often end up revealing test files, backup files, temporary files, hidden files, configuration files, user accounts, script contents, as well as naming conventions, all of which can be used by an attacker to mount additional attacks.
- Subverting Environment Variable Values The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
- Accessing, Modifying or Executing Executable Files An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
Nessus
NASL family Huawei Local Security Checks NASL id EULEROS_SA-2017-1013.NASL description According to the versions of the ipa packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) - It was found that IdM last seen 2020-05-06 modified 2017-05-01 plugin id 99859 published 2017-05-01 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/99859 title EulerOS 2.0 SP1 : ipa (EulerOS-SA-2017-1013) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(99859); script_version("1.14"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/04"); script_cve_id( "CVE-2016-7030", "CVE-2016-9575" ); script_name(english:"EulerOS 2.0 SP1 : ipa (EulerOS-SA-2017-1013)"); script_summary(english:"Checks the rpm output for the updated packages."); script_set_attribute(attribute:"synopsis", value: "The remote EulerOS host is missing multiple security updates."); script_set_attribute(attribute:"description", value: "According to the versions of the ipa packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) - It was found that IdM's certprofile-mod command did not properly check the user's permissions while modifying certificate profiles. An authenticated, unprivileged attacker could use this flaw to modify profiles to issue certificates with arbitrary naming or key usage information and subsequently use such certificates for other attacks. (CVE-2016-9575) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues."); # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2017-1013 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?72999d7f"); script_set_attribute(attribute:"solution", value: "Update the affected ipa packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/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:L/UI:N/S:U/C:L/I:L/A:L"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"patch_publication_date", value:"2017/01/18"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/01"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ipa-admintools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ipa-client"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ipa-python"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ipa-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ipa-server-trust-ad"); script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Huawei Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp"); script_exclude_keys("Host/EulerOS/uvp_version"); 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/EulerOS/release"); if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS"); if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0"); sp = get_kb_item("Host/EulerOS/sp"); if (isnull(sp) || sp !~ "^(1)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1"); uvp = get_kb_item("Host/EulerOS/uvp_version"); if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1", "EulerOS UVP " + uvp); if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu); flag = 0; pkgs = ["ipa-admintools-4.2.0-15.0.1.19.h1", "ipa-client-4.2.0-15.0.1.19.h1", "ipa-python-4.2.0-15.0.1.19.h1", "ipa-server-4.2.0-15.0.1.19.h1", "ipa-server-trust-ad-4.2.0-15.0.1.19.h1"]; foreach (pkg in pkgs) if (rpm_check(release:"EulerOS-2.0", sp:"1", reference:pkg)) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, 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, "ipa"); }NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2017-0001.NASL description An update for ipa is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments. Security Fix(es) : * It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) * It was found that IdM last seen 2020-06-01 modified 2020-06-02 plugin id 96182 published 2017-01-03 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96182 title CentOS 7 : ipa (CESA-2017:0001) NASL family Scientific Linux Local Security Checks NASL id SL_20170102_IPA_ON_SL7_X.NASL description Security Fix(es) : - It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) - It was found that IdM last seen 2020-03-18 modified 2017-01-04 plugin id 96280 published 2017-01-04 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/96280 title Scientific Linux Security Update : ipa on SL7.x x86_64 (20170102) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-0001.NASL description From Red Hat Security Advisory 2017:0001 : An update for ipa is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments. Security Fix(es) : * It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) * It was found that IdM last seen 2020-06-01 modified 2020-06-02 plugin id 96279 published 2017-01-04 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96279 title Oracle Linux 7 : ipa (ELSA-2017-0001) NASL family Fedora Local Security Checks NASL id FEDORA_2016-CA1D1E1DC1.NASL description Rebase to upstream 4.4.3: http://www.freeipa.org/page/Releases/4.4.3 ---- - Fixes 1395311 - CVE-2016-9575 ipa: Insufficient permission check in certprofile-mod - Fixes 1370493 - CVE-2016-7030 ipa: DoS attack against kerberized services by abusing password policy 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 2016-12-20 plugin id 95947 published 2016-12-20 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95947 title Fedora 25 : freeipa (2016-ca1d1e1dc1) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZLSA-2017-0001.NASL description An update for ipa is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments. Security Fix(es) : * It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) * It was found that IdM last seen 2020-06-01 modified 2020-06-02 plugin id 101398 published 2017-07-13 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/101398 title Virtuozzo 7 : ipa-admintools / ipa-client / ipa-client-common / etc (VZLSA-2017-0001) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2017-0001.NASL description An update for ipa is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Red Hat Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments. Security Fix(es) : * It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) * It was found that IdM last seen 2020-06-01 modified 2020-06-02 plugin id 96267 published 2017-01-03 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/96267 title RHEL 7 : ipa (RHSA-2017:0001) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2017-1014.NASL description According to the versions of the ipa packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - It was discovered that the default IdM password policies that lock out accounts after a certain number of failed login attempts were also applied to host and service accounts. A remote unauthenticated user could use this flaw to cause a denial of service attack against kerberized services. (CVE-2016-7030) - It was found that IdM last seen 2020-05-06 modified 2017-05-01 plugin id 99860 published 2017-05-01 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/99860 title EulerOS 2.0 SP2 : ipa (EulerOS-SA-2017-1014) NASL family Fedora Local Security Checks NASL id FEDORA_2016-D337166907.NASL description - Fixes 1395311 - CVE-2016-9575 ipa: Insufficient permission check in certprofile-mod - Fixes 1370493 - CVE-2016-7030 ipa: DoS attack against kerberized services by abusing password policy ---- - Fixes 1395311 - CVE-2016-9575 ipa: Insufficient permission check in certprofile-mod - Fixes 1370493 - CVE-2016-7030 ipa: DoS attack against kerberized services by abusing password policy 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 2017-01-04 plugin id 96275 published 2017-01-04 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/96275 title Fedora 24 : freeipa (2016-d337166907)
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