National Vulnerability Database

National Vulnerability Database

National Vulnerability
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    Vulnerabilities Detail

CVE-2016-0634 Detail

Current Description

The expansion of '\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell metacharacters placed in 'hostname' of a machine.

Source:  MITRE
Description Last Modified:  08/28/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.6

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.0 MEDIUM
Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 6.8

Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): Single
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://rhn.redhat.com/errata/RHSA-2017-0725.html
http://www.openwall.com/lists/oss-security/2016/09/16/12 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/16/8 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/18/11 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/19/7 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/20/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/27/9 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/29/27 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/07/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/10/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/10/4 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/92999 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1931
https://bugzilla.redhat.com/show_bug.cgi?id=1377613 Issue Tracking Patch Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201612-39 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • OS Command Injections (CWE-78)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:gnu:bash:4.3:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-0634
NVD Published Date:
08/28/2017
NVD Last Modified:
01/04/2018