National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-0920)

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Vulnerability Summary for CVE-2012-0920

Original release date:06/05/2012

Last revised:06/20/2012

Source: US-CERT/NIST

Overview

Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concurrency."

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:7.1 (HIGH) (AV:N/AC:H/Au:S/C:C/I:C/A:C) (legend)

Impact Subscore: 10.0

Exploitability Subscore: 3.9

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: High

Authentication: Required to exploit

Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

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External Source: MISC

Name: https://www.mantor.org/~northox/misc/CVE-2012-0920.html

Hyperlink:https://www.mantor.org/~northox/misc/CVE-2012-0920.html

External Source: CONFIRM

Name: https://secure.ucc.asn.au/hg/dropbear/rev/818108bf7749

Hyperlink:https://secure.ucc.asn.au/hg/dropbear/rev/818108bf7749

External Source: XF

Name: dropbear-code-execution(73444)

Hyperlink:http://xforce.iss.net/xforce/xfdb/73444

External Source: BID

Name: 52159

Hyperlink:http://www.securityfocus.com/bid/52159