CVE-2018-8780

CVSS V2 High 7.5 CVSS V3 Critical 9.1

Description

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, the Dir.open, Dir.new, Dir.entries and Dir.empty? methods do not check NULL characters. When using the corresponding method, unintentional directory traversal may be performed.

Overview

CVE ID
CVE-2018-8780

Assigner
cve@mitre.org

Vulnerability Status
Modified

Published Version
2018-04-03T22:29:00

Last Modified Date
2019-07-21T12:15:15

Weakness Enumerations

CWE	URL
CWE-22	http://cwe.mitre.org/data/definitions/22.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:ruby-lang:ruby::::::::	1	OR		2.2.10
cpe:2.3:a:ruby-lang:ruby::::::::	1	OR	2.3.0	2.3.7
cpe:2.3:a:ruby-lang:ruby::::::::	1	OR	2.4.0	2.4.4
cpe:2.3:a:ruby-lang:ruby::::::::	1	OR	2.5.0	2.5.1
cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1::::::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:7.0:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:8.0:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:9.0:::::::*	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
7.5

Severity
HIGH

Exploitability Score
10

Impact Score
6.4

CVSS Version 3

Version
3.0

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
9.1

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.2

References

Reference URL	Reference Tags
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/	Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/	Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/	Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/	Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/poisoned-nul-byte-dir-cve-2018-8780/	Vendor Advisory
http://www.securityfocus.com/bid/103739	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3626-1/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html	Mailing List Third Party Advisory
https://www.debian.org/security/2018/dsa-4259	Third Party Advisory
http://www.securitytracker.com/id/1042004	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:3731	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3730	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3729	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
https://access.redhat.com/errata/RHSA-2019:2028
https://access.redhat.com/errata/RHSA-2020:0542
https://access.redhat.com/errata/RHSA-2020:0591
https://access.redhat.com/errata/RHSA-2020:0663

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-8780
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8780

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:40:38				Added to TrackCVE
2022-12-03 04:17:54	2018-04-03T22:29Z	2018-04-03T22:29:00	CVE Published Date	updated
2022-12-03 04:17:54		2019-07-21T12:15:15	CVE Modified Date	updated
2022-12-03 04:17:54		Modified	Vulnerability Status	updated