FreeIPA uses a default password policy that locks an account after 5 unsuccessful authentication attempts, which allows remote attackers to cause a denial of service by locking out the account in which system services run on.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - FreeIPA uses a default password policy that locks an account after 5 unsuccessful authentication attempts,     which allows remote attackers to cause a denial of service by locking out the account in which system     services run on. (CVE-2016-7030)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4792-1 advisory.

    It was discovered that FreeIPA incorrectly handled certificates. An attacker could possibly use this issue     to cause a denial of service by revoking arbitrary certificates This issue only affected Ubuntu 16.04 ESM.
    (CVE-2016-5404)

    It was discovered that FreeIPA incorrectly handled authentication attempts. An attacker could possibly use     this issue to cause a denial of service. (CVE-2016-7030)

    It was discovered that FreeIPA incorrectly handled user's permissions. An authenticated attacker could     possibly use this issue to modify other user's profiles or other unspecified impact. This issue only     affected Ubuntu 16.04 ESM. (CVE-2016-9575)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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'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)

The CVE-2016-7030 issue was discovered by Petr Spacek (Red Hat) and the CVE-2016-9575 issue was discovered by Liam Campbell (Red Hat).

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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.

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'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)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-0001 advisory.

    - Resolves: #1370493 CVE-2016-7030 ipa: DoS attack against kerberized services       by abusing password policy
      - ipa-kdb: search for password policies globally
    - Resolves: #1370493 CVE-2016-7030 ipa: DoS attack against kerberized services       by abusing password policy
      - password policy: Add explicit default password policy for hosts and         services

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

- 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.

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'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)

The CVE-2016-7030 issue was discovered by Petr Spacek (Red Hat) and the CVE-2016-9575 issue was discovered by Liam Campbell (Red Hat).

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.

ID	Name	Product	Family	Severity
220041	Linux Distros Unpatched Vulnerability : CVE-2016-7030	Nessus	Misc.	high
183738	Ubuntu 16.04 ESM : FreeIPA vulnerabilities (USN-4792-1)	Nessus	Ubuntu Local Security Checks	medium
101398	Virtuozzo 7 : ipa-admintools / ipa-client / ipa-client-common / etc (VZLSA-2017-0001)	Nessus	Virtuozzo Local Security Checks	medium
99860	EulerOS 2.0 SP2 : ipa (EulerOS-SA-2017-1014)	Nessus	Huawei Local Security Checks	medium
99859	EulerOS 2.0 SP1 : ipa (EulerOS-SA-2017-1013)	Nessus	Huawei Local Security Checks	medium
96280	Scientific Linux Security Update : ipa on SL7.x x86_64 (20170102)	Nessus	Scientific Linux Local Security Checks	high
96279	Oracle Linux 7 : ipa (ELSA-2017-0001)	Nessus	Oracle Linux Local Security Checks	medium
96275	Fedora 24 : freeipa (2016-d337166907)	Nessus	Fedora Local Security Checks	high
96267	RHEL 7 : ipa (RHSA-2017:0001)	Nessus	Red Hat Local Security Checks	high
96182	CentOS 7 : ipa (CESA-2017:0001)	Nessus	CentOS Local Security Checks	high
95947	Fedora 25 : freeipa (2016-ca1d1e1dc1)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2016-7030

high

Tenable Plugins

high

medium

medium

medium

medium

high

medium

high

high

high

high