CVE-2015-5352

MEDIUM
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html

http://openwall.com/lists/oss-security/2015/07/01/10

http://rhn.redhat.com/errata/RHSA-2016-0741.html

http://www.openssh.com/txt/release-6.9

http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

http://www.securityfocus.com/bid/75525

http://www.securitytracker.com/id/1032797

http://www.ubuntu.com/usn/USN-2710-1

http://www.ubuntu.com/usn/USN-2710-2

https://anongit.mindrot.org/openssh.git/commit/?h=V_6_9&id=1bf477d3cdf1a864646d59820878783d42357a1d

https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html

https://security.gentoo.org/glsa/201512-04

https://security.netapp.com/advisory/ntap-20181023-0001/

Details

Source: MITRE

Published: 2015-08-03

Updated: 2018-10-24

Type: CWE-264

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* versions up to 6.8 (inclusive)

Tenable Plugins

View all (20 total)

IDNameProductFamilySeverity
97560F5 Networks BIG-IP : OpenSSH vulnerability (K17461)NessusF5 Networks Local Security Checks
medium
91540Scientific Linux Security Update : openssh on SL6.x i386/x86_64 (20160510)NessusScientific Linux Local Security Checks
critical
91166CentOS 6 : openssh (CESA-2016:0741)NessusCentOS Local Security Checks
critical
91148Oracle Linux 6 : openssh (ELSA-2016-0741)NessusOracle Linux Local Security Checks
critical
91073RHEL 6 : openssh (RHSA-2016:0741)NessusRed Hat Local Security Checks
critical
9308OpenSSH < 6.9 Multiple VulnerabilitiesNessus Network MonitorSSH
high
87545GLSA-201512-04 : OpenSSH: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
86695SUSE SLES11 Security Update : openssh (SUSE-SU-2015:1840-1) (Logjam)NessusSuSE Local Security Checks
low
86339SUSE SLED11 / SLES11 Security Update : openssh (SUSE-SU-2015:1695-1) (Logjam)NessusSuSE Local Security Checks
low
86057SUSE SLED11 / SLES11 Security Update : openssh (SUSE-SU-2015:1581-1) (Logjam)NessusSuSE Local Security Checks
low
85941SUSE SLED11 Security Update : openssh (SUSE-SU-2015:1547-2) (Logjam)NessusSuSE Local Security Checks
low
85930AIX OpenSSH Vulnerability : openssh_advisory5.ascNessusAIX Local Security Checks
medium
85929SUSE SLES11 Security Update : openssh (SUSE-SU-2015:1547-1) (Logjam)NessusSuSE Local Security Checks
low
85928SUSE SLED12 / SLES12 Security Update : openssh (SUSE-SU-2015:1544-1) (Logjam)NessusSuSE Local Security Checks
low
85533Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : openssh regression (USN-2710-2)NessusUbuntu Local Security Checks
high
85445Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : openssh vulnerabilities (USN-2710-1)NessusUbuntu Local Security Checks
high
84928Amazon Linux AMI : openssh (ALAS-2015-568)NessusAmazon Linux Local Security Checks
medium
84688Fedora 21 : openssh-6.6.1p1-13.fc21 (2015-11067)NessusFedora Local Security Checks
medium
84687Fedora 22 : openssh-6.9p1-1.fc22 (2015-11063)NessusFedora Local Security Checks
medium
84638OpenSSH < 6.9 Multiple VulnerabilitiesNessusMisc.
high