CVE-2013-4548

The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.

CVSS v2.0 6.0 MEDIUM

6.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 6.8 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00017.html
http://marc.info/?l=bugtraq&m=141576985122836&w=2
http://openwall.com/lists/oss-security/2013/11/08/3
http://www.openssh.com/txt/gcmrekey.adv	Vendor Advisory
http://www.ubuntu.com/usn/USN-2014-1

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openbsd:openssh:6.2:::::::*
	cpe:2.3:a:openbsd:openssh:6.3:::::::*

History

No history.

Information

Published : 2013-11-08 15:55

Updated : 2023-12-10 11:16

NVD link : CVE-2013-4548

Mitre link : CVE-2013-4548

CVE.ORG link : CVE-2013-4548

JSON object : View

Products Affected

openbsd

openssh

CWE

CWE-264

Permissions, Privileges, and Access Controls

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