ipa: DoS attack against kerberized services by abusing password policy
Published Aug 28, 2017
7.5
HIGHCVSS 3.0
EPSS 4.70%
Description
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
ipa-0:4.4.0-14.el7_3.1.1
Fixed · RHSA-2017:0001
Red Hat Enterprise Linux 6
ipa
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | ipa-0:4.4.0-14.el7_3.1.1 | Fixed | RHSA-2017:0001 |
| Red Hat Enterprise Linux 6 | ipa | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.70% (0.04700) | 91.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.70% (0.04700) | 90.61th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.86% (0.00861) | 72.95th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.26% (0.02262) | 74.34th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.86% (0.00861) | 73.45th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.01% (0.01013) | 84.40th | v3 (v2023.03.01) |
| Apr 16, 2024 | 1.01% (0.01013) | 83.49th | v3 (v2023.03.01) |
| May 8, 2023 | 1.01% (0.01013) | 81.49th | v3 (v2023.03.01) |
| Apr 17, 2023 | 0.84% (0.00842) | 79.69th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.10% (0.01097) | 82.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.21% (0.01213) | 66.13th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.32% (0.01319) | 70.54th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (8)
- http://rhn.redhat.com/errata/RHSA-2017-0001.html vendor-advisoryx_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2017/01/02/5 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94934 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-7030 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1370493 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-7030
- https://pagure.io/freeipa?id=6f1d927467e7907fd1991f88388d96c67c9bff61 x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-7030
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2017-0001.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.openwall.com/lists/oss-security/2017/01/02/5 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/94934 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-7030 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1370493 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-7030 | ||
| https://pagure.io/freeipa?id=6f1d927467e7907fd1991f88388d96c67c9bff61 | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2016-7030 |
Change history (0)
No recorded changes yet.