Vulnerability CVE-2015-6565
Published: 2015-08-23   Modified: 2015-08-24

Description:
sshd in OpenSSH 6.8 and 6.9 uses world-writable permissions for TTY devices, which allows local users to cause a denial of service (terminal disruption) or possibly have unspecified other impact by writing to a device, as demonstrated by writing an escape sequence.

See advisories in our WLB2 database:
Topic
Author
Date
High
OpenSSH 6.8-6.9 local privilege escalation
Federico Bento
27.01.2017

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Openbsd -> Openssh 

 References:
http://openwall.com/lists/oss-security/2017/01/26/2
http://www.openssh.com/txt/release-7.0
http://www.openwall.com/lists/oss-security/2015/08/22/1
http://www.securityfocus.com/bid/76497
http://www.securitytracker.com/id/1033917
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05131085
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
https://security.gentoo.org/glsa/201512-04
https://www.exploit-db.com/exploits/41173/
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