CVE-2018-9862

CVSS V2 High 7.2 CVSS V3 High 7.8

Description

util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a "docker exec" command with that value in the -u argument, a similar issue to CVE-2016-3697.

Overview

CVE ID
CVE-2018-9862

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2018-04-09T16:29:00

Last Modified Date
2019-10-03T00:03:26

Weakness Enumerations

CWE	URL
CWE-838	http://cwe.mitre.org/data/definitions/838.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:hyper:runv:1.0.0:::::docker::	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
COMPLETE

Integrity Impact
COMPLETE

Availability Impact
COMPLETE

Base Score
7.2

Severity
HIGH

Exploitability Score
3.9

Impact Score
10

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.8

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://github.com/hyperhq/hyperstart/pull/348	Patch Third Party Advisory
http://www.securityfocus.com/bid/103738	Broken Link Third Party Advisory VDB Entry

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-9862
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9862

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:44:55				Added to TrackCVE
2022-12-03 04:33:07	2018-04-09T16:29Z	2018-04-09T16:29:00	CVE Published Date	updated
2022-12-03 04:33:07		2019-10-03T00:03:26	CVE Modified Date	updated
2022-12-03 04:33:07		Analyzed	Vulnerability Status	updated