National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-4484 Detail

Current Description

The Debian initrd script for the cryptsetup package 2:1.7.3-2 and earlier allows physically proximate attackers to gain shell access via many log in attempts with an invalid password.

Source:  MITRE
Description Last Modified:  01/23/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 0.9

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

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
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://hmarco.org/bugs/CVE-2016-4484/CVE-2016-4484_cryptsetup_initrd_shell.html Exploit Mitigation Technical Description Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/14/13 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/15/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/15/4 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/16/6 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/94315
https://gitlab.com/cryptsetup/cryptsetup/commit/ef8a7d82d8d3716ae9b58179590f7908981fa0cb Patch

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4484
NVD Published Date:
01/23/2017
NVD Last Modified:
01/25/2017