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CVE-2014-9278

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2015-0425-02
Posted Mar 5, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-0425-02 - OpenSSH is OpenBSD's SSH protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. It was discovered that OpenSSH clients did not correctly verify DNS SSHFP records. A malicious server could use this flaw to force a connecting client to skip the DNS SSHFP record check and require the user to perform manual host verification of the DNS SSHFP record. It was found that when OpenSSH was used in a Kerberos environment, remote authenticated users were allowed to log in as a different user if they were listed in the ~/.k5users file of that user, potentially bypassing intended authentication restrictions.

tags | advisory, remote, protocol
systems | linux, redhat, openbsd
advisories | CVE-2014-2653, CVE-2014-9278
MD5 | c190f95272450de057818506fdcee87b
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