Auth bypass in OpenBSD OpenSSH
CVE-2014-9278
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.0 (Medium). Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.018 (78.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- OpenBSD OpenSSH
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Fedora — versions 7
Weakness classification (CWE)
References
- www.securityfocus.com/bid/71420 (vdb-entry)
- www.openwall.com/lists/oss-security/2014/12/04/17 (mailing-list)
- rhn.redhat.com/errata/RHSA-2015-0425.html (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi
- bugzilla.mindrot.org/show_bug.cgi
- thread.gmane.org/gmane.comp.encryption.kerberos.general/15855
- exchange.xforce.ibmcloud.com/vulnerabilities/99090 (vdb-entry)
- www.openwall.com/lists/oss-security/2014/12/02/3 (mailing-list)