krb5: kadmind incorrectly validates server principal name (MITKRB5-SA-2015-001)
Published Feb 19, 2015
6.1
MEDIUMCVSS 2.0
EPSS 2.73%
Description
The check_rpcsec_auth function in kadmin/server/kadm_rpc_svc.c in kadmind in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 allows remote authenticated users to bypass a kadmin/* authorization check and obtain administrative access by leveraging access to a two-component principal with an initial "kadmind" substring, as demonstrated by a "ka/x" principal.
Affected products
No data.
- 1.11
- 1.11.1
- 1.11.2
- 1.11.3
- 1.11.4
- 1.11.5
- 1.12
- 1.12.1
- 1.12.2
- 1.13
No data.
Red Hat Enterprise Linux 6
krb5-0:1.10.3-37.el6_6
Fixed · RHSA-2015:0794
Red Hat Enterprise Linux 7
krb5-0:1.12.2-14.el7
Fixed · RHSA-2015:0439
Red Hat Enterprise Linux 5
krb5
Will not fix
Red Hat JBoss Enterprise Application Platform 6
jbossas
Not affected
Red Hat JBoss Enterprise Web Server 2
krb5
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | krb5-0:1.10.3-37.el6_6 | Fixed | RHSA-2015:0794 |
| Red Hat Enterprise Linux 7 | krb5-0:1.12.2-14.el7 | Fixed | RHSA-2015:0439 |
| Red Hat Enterprise Linux 5 | krb5 | Will not fix | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | jbossas | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | krb5 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:S/C:P/I:P/A:C
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.73% (0.02726) | 85.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.73% (0.02726) | 84.09th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.02% (0.01020) | 75.22th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.15% (0.02149) | 73.71th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.02% (0.01020) | 75.69th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.71% (0.00712) | 81.14th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.81% (0.00815) | 81.24th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.81% (0.00815) | 79.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.19% (0.02186) | 80.97th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.19% (0.02186) | 79.16th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.19% (0.02186) | 57.93th | v2 (v2022.01.01) |
References (19)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151437.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00011.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00044.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-0439.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-0794.html vendor-advisoryx_refsource_REDHAT
- http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2015-001.txt
- http://web.mit.edu/kerberos/advisories/2015-001-patch-r113.txt x_refsource_CONFIRM
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2015-001.txt x_refsource_CONFIRMVendor Advisory
- http://www.debian.org/security/2015/dsa-3153 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:069 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/bid/72494 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2498-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-9422 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1179861 Issue Tracking
- https://github.com/krb5/krb5/commit/6609658db0799053fbef0d7d0aa2f1fd68ef32d8 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2014-9422
- https://www.cve.org/CVERecord?id=CVE-2014-9422
Change history (0)
No recorded changes yet.