CVE-2016-7030
First published: Fri Aug 26 2016(Updated: )
A flaw was found that allows any unauthenticated party to easily run DoS attack against kerberized services in FreeIPA/IdM realm. FreeIPA contains MIT KDC as its main component + FreeIPA is using custom database driver for the KDC. As a side-effect of implementation, FreeIPA is enforcing password policies for all principals, including services which do not use "password" but keytab with randomly-generated/strong key. Default password policy locks an account after 5 unsuccessful authentication attempts for 10 minutes. An attacker can use this to simply lock-out any principal, including system services. Upstream patch : <a href="https://git.fedorahosted.org/cgit/freeipa.git/commit/?id=6f1d927467e7907fd1991f88388d96c67c9bff61">https://git.fedorahosted.org/cgit/freeipa.git/commit/?id=6f1d927467e7907fd1991f88388d96c67c9bff61</a> Additional dependency : <a href="https://git.fedorahosted.org/cgit/freeipa.git/commit/?id=73f33569c8893610e246b2f44a7aeaec872b37e6">https://git.fedorahosted.org/cgit/freeipa.git/commit/?id=73f33569c8893610e246b2f44a7aeaec872b37e6</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Freeipa Freeipa | =4.6.0 |
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Reference Links
- http://rhn.redhat.com/errata/RHSA-2017-0001.html
- http://www.openwall.com/lists/oss-security/2017/01/02/5
- http://www.securityfocus.com/bid/94934
- https://bugzilla.redhat.com/show_bug.cgi?id=1370493
- https://pagure.io/freeipa?id=6f1d927467e7907fd1991f88388d96c67c9bff61
- https://git.fedorahosted.org/cgit/freeipa.git/commit/?id=6f1d927467e7907fd1991f88388d96c67c9bff61
- https://git.fedorahosted.org/cgit/freeipa.git/commit/?id=73f33569c8893610e246b2f44a7aeaec872b37e6
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1404690
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1230758&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1230758&action=edit
- https://rhn.redhat.com/errata/RHSA-2017-0001.html
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- agent/softwarecombine
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- collector/mitre-cve
- source/MITRE
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-7030
- agent/severity
- agent/last-modified-date
- agent/author
- agent/references
- agent/weakness
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- vendor/freeipa
- canonical/freeipa freeipa
- version/freeipa freeipa/4.6.0