CVE-2016-4484 : The Debian initrd script for the cryptsetup package 2:1.7.3-2 and earlier allows

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.

Published 2017-01-23 21:59:02

Updated 2017-01-26 02:59:02

Source MITRE

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2016-4484

Cryptsetup Project » Cryptsetup
Versions up to, including, (<=) 2.1.7.3-2
cpe:2.3:a:cryptsetup_project:cryptsetup:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-4484

EPSS FAQ

0.38%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 57 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-4484

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.2	HIGH	AV:L/AC:L/Au:N/C:C/I:C/A:C	3.9	10.0	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
6.8	MEDIUM	CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	0.9	5.9	NIST
Attack Vector: Physical Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2016-4484

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-4484

http://www.openwall.com/lists/oss-security/2016/11/14/13

oss-security - CVE-2016-4484: - Cryptsetup Initrd root Shell
Mailing List;Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/16/6

oss-security - Re: CVE-2016-4484: - Cryptsetup Initrd root Shell
Mailing List;Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/15/4

oss-security - Re: [FD] CVE-2016-4484: - Cryptsetup Initrd root Shell
Mailing List;Third Party Advisory
http://hmarco.org/bugs/CVE-2016-4484/CVE-2016-4484_cryptsetup_initrd_shell.html

Enter 30 to shell: Cryptsetup Initram Shell [CVE-2016-4484]
Exploit;Mitigation;Technical Description;Third Party Advisory
http://www.securityfocus.com/bid/94315

Cryptsetup CVE-2016-4484 Multiple Local Security Vulnerabilities
https://gitlab.com/cryptsetup/cryptsetup/commit/ef8a7d82d8d3716ae9b58179590f7908981fa0cb

Update Readme.md. (ef8a7d82) · Commits · cryptsetup / cryptsetup · GitLab
Patch
http://www.openwall.com/lists/oss-security/2016/11/15/1

oss-security - Re: CVE-2016-4484: - Cryptsetup Initrd root Shell - Update: Dracut is also vulnerable
Mailing List;Third Party Advisory

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Vulnerability Details : CVE-2016-4484

Products affected by CVE-2016-4484

Exploit prediction scoring system (EPSS) score for CVE-2016-4484

CVSS scores for CVE-2016-4484

CWE ids for CVE-2016-4484

References for CVE-2016-4484