Credentials management in FreeIPA - CVE-2016-7030

Vulnerability identifier: #VU38415

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-7030

CWE-ID: CWE-255

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.

FreeIPA
Red Hat Enterprise Linux Server for ARM
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - Extended Update Support
Fedora
freeipa
ipa (Red Hat package)

Install update from vendor's website.

freeipa - addressed in versions 4.3.2-3.fc24, 4.3.2-4.fc24, 4.4.2-2.fc25, 4.4.3-1.fc25
ipa (Red Hat package) - update to 4.4.0-14.el7_3.1.1

• 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

• Credentials management in FreeIPA
• Fedora 25 update for freeipa
• Fedora 24 update for freeipa
• Fedora 24 update for freeipa
• Fedora 25 update for freeipa
• Red Hat Enterprise Linux 7 update for ipa