openssh: ~/.k5users unexpectedly grants remote login
Published Dec 6, 2014
4.0
MEDIUMCVSS 2.0
EPSS 1.83%
Description
The OpenSSH server, as used in Fedora and Red Hat Enterprise Linux 7 and when running in a Kerberos environment, allows remote authenticated users to log in as another user when they are listed in the .k5users file of that user, which might bypass intended authentication requirements that would force a local login.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
openssh-0:6.6.1p1-11.el7
Fixed · RHSA-2015:0425
Red Hat Enterprise Linux 5
openssh
Not affected
Red Hat Enterprise Linux 6
openssh
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | openssh-0:6.6.1p1-11.el7 | Fixed | RHSA-2015:0425 |
| Red Hat Enterprise Linux 5 | openssh | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssh | Not affected | 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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:N/I:P/A:N
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 2, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.83% (0.01833) | 78.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.83% (0.01833) | 76.05th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.34% (0.00343) | 54.75th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00243) | 64.85th | v3 (v2023.03.01) |
| Jul 18, 2024 | 0.24% (0.00243) | 64.75th | v3 (v2023.03.01) |
| Jun 18, 2024 | 0.24% (0.00239) | 62.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00239) | 60.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.31% (0.01315) | 68.50th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.31% (0.01315) | 67.95th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.81% (0.01815) | 76.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.31% (0.01315) | 66.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.31% (0.01315) | 41.88th | v2 (v2022.01.01) |
References (11)
- http://rhn.redhat.com/errata/RHSA-2015-0425.html vendor-advisoryx_refsource_REDHAT
- http://thread.gmane.org/gmane.comp.encryption.kerberos.general/15855 x_refsource_MISC
- http://www.openwall.com/lists/oss-security/2014/12/02/3 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2014/12/04/17 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/71420 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2014-9278 Vendor Advisory
- https://bugzilla.mindrot.org/show_bug.cgi?id=1867 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1169843 x_refsource_CONFIRMIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/99090 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2014-9278
- https://www.cve.org/CVERecord?id=CVE-2014-9278
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-0425.html | vendor-advisoryx_refsource_REDHAT | |
| http://thread.gmane.org/gmane.comp.encryption.kerberos.general/15855 | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2014/12/02/3 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2014/12/04/17 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/71420 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2014-9278 | Vendor Advisory | |
| https://bugzilla.mindrot.org/show_bug.cgi?id=1867 | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1169843 | x_refsource_CONFIRMIssue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/99090 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-9278 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-9278 |
Change history (0)
No recorded changes yet.