Veracode Vulnerability DatabaseVERACODE:12033Authorization Bypass
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
openssh is vulnerable to authorization bypass attacks. The vulnerability exists as the x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.
References
lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
openwall.com/lists/oss-security/2015/07/01/10
rhn.redhat.com/errata/RHSA-2016-0741.html
www.openssh.com/txt/release-6.9
www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
www.securityfocus.com/bid/75525
www.securitytracker.com/id/1032797
www.ubuntu.com/usn/USN-2710-1
www.ubuntu.com/usn/USN-2710-2
access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Release_Notes/index.html
access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Technical_Notes/index.html
access.redhat.com/security/updates/classification/#moderate
anongit.mindrot.org/openssh.git/commit/?h=V_6_9&id=1bf477d3cdf1a864646d59820878783d42357a1d
bugzilla.redhat.com/show_bug.cgi?id=1211673
bugzilla.redhat.com/show_bug.cgi?id=1218070
bugzilla.redhat.com/show_bug.cgi?id=1219820
cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
lists.debian.org/debian-lts-announce/2018/09/msg00010.html
rhn.redhat.com/errata/RHSA-2016-0741.html
security.gentoo.org/glsa/201512-04
security.netapp.com/advisory/ntap-20181023-0001/
Related
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N