A vulnerability was found in FreeIPA in how the initial implementation of MS-SFU by MIT Kerberos was missing a condition for granting the "forwardable" flag on S4U2Self tickets. Fixing this mistake required adding a special case for the check_allowed_to_delegate() function: If the target service argument is NULL, then it means the KDC is probing for general constrained delegation rules and not checking a specific S4U2Proxy request. In FreeIPA 4.11.0, the behavior of ipadb_match_acl() was modified to match the changes from upstream MIT Kerberos 1.20. However, a mistake resulting in this mechanism applies in cases where the target service argument is set AND where it is unset. This results in S4U2Proxy requests being accepted regardless of whether or not there is a matching service delegation rule.

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

  - A vulnerability was found in FreeIPA in how the initial implementation of MS-SFU by MIT Kerberos was     missing a condition for granting the forwardable flag on S4U2Self tickets. Fixing this mistake required     adding a special case for the check_allowed_to_delegate() function: If the target service argument is     NULL, then it means the KDC is probing for general constrained delegation rules and not checking a     specific S4U2Proxy request. In FreeIPA 4.11.0, the behavior of ipadb_match_acl() was modified to match the     changes from upstream MIT Kerberos 1.20. However, a mistake resulting in this mechanism applies in cases     where the target service argument is set AND where it is unset. This results in S4U2Proxy requests being     accepted regardless of whether or not there is a matching service delegation rule. (CVE-2024-2698)

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

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-1d1b485611 advisory.

    Fix CVE-2024-2698 and CVE-2024-3183

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

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

The remote Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-2a466c6514 advisory.

    Fix CVE-2024-2698 and CVE-2024-3183

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

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

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:3755 advisory.

    * CVE-2024-2698 freeipa: delegation rules allow a proxy service to impersonate any user to access another     target service

    * CVE-2024-3183 freeipa: user can obtain a hash of the passwords of all domain users and perform offline     brute force

Tenable has extracted the preceding description block directly from the Rocky 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.

The remote Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:3754 advisory.

    * freeipa: delegation rules allow a proxy service to impersonate any user to access another target service     (CVE-2024-2698)

    * freeipa: user can obtain a hash of the passwords of all domain users and perform offline brute force     (CVE-2024-3183)

Tenable has extracted the preceding description block directly from the Rocky 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.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-3755 advisory.

    - kdb: apply combinatorial logic for ticket flags (CVE-2024-3183)       Resolves: RHEL-29927

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.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-3754 advisory.

    - Resolves: RHEL-32231 CVE-2024-3183 ipa: freeipa: user can obtain a hash of the passwords of all domain     users and perform offline brute force

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.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3757 advisory.

    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):

    * freeipa: delegation rules allow a proxy service to impersonate     any user to access another target service (CVE-2024-2698)
    * freeipa: user can obtain a hash of the passwords of all domain     users and perform offline brute force (CVE-2024-3183)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE page(s)     listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3754 advisory.

    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):

    * freeipa: delegation rules allow a proxy service to impersonate any user to access another target service     (CVE-2024-2698)

    * freeipa: user can obtain a hash of the passwords of all domain users and perform offline brute force     (CVE-2024-3183)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3759 advisory.

    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):

    * CVE-2024-2698 freeipa: delegation rules allow a proxy service to impersonate any user to access another     target service

    * CVE-2024-3183 freeipa: user can obtain a hash of the passwords of all domain users and perform offline     brute force

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3755 advisory.

    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):

    * CVE-2024-2698 freeipa: delegation rules allow a proxy service to impersonate any user to access another     target service

    * CVE-2024-3183 freeipa: user can obtain a hash of the passwords of all domain users and perform offline     brute force

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

ID	Name	Product	Family	Severity
227907	Linux Distros Unpatched Vulnerability : CVE-2024-2698	Nessus	Misc.	high
201158	Fedora 39 : freeipa (2024-1d1b485611)	Nessus	Fedora Local Security Checks	high
201067	Fedora 40 : freeipa (2024-2a466c6514)	Nessus	Fedora Local Security Checks	high
200610	Rocky Linux 8 : idm:DL1 (RLSA-2024:3755)	Nessus	Rocky Linux Local Security Checks	high
200586	Rocky Linux 9 : ipa (RLSA-2024:3754)	Nessus	Rocky Linux Local Security Checks	high
200319	Oracle Linux 8 : idm:DL1 (ELSA-2024-3755)	Nessus	Oracle Linux Local Security Checks	high
200300	Oracle Linux 9 : ipa (ELSA-2024-3754)	Nessus	Oracle Linux Local Security Checks	high
200253	RHEL 9 : ipa (RHSA-2024:3757)	Nessus	Red Hat Local Security Checks	high
200252	RHEL 9 : ipa (RHSA-2024:3754)	Nessus	Red Hat Local Security Checks	high
200249	RHEL 8 : idm:DL1 (RHSA-2024:3759)	Nessus	Red Hat Local Security Checks	high
200246	RHEL 8 : idm:DL1 (RHSA-2024:3755)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2024-2698

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high