CVE-2018-8779 : 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.

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 UNIXServer.open and UNIXSocket.open methods are not checked for null characters. It may be connected to an unintended socket.

Published 2018-04-03 22:29:01

Updated 2019-07-21 12:15:16

Source MITRE

View at NVD, CVE.org

Vulnerability category: Input validation

Products affected by CVE-2018-8779

Debian » Debian Linux » Version: 7.0
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 14.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 16.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 17.10
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
Matching versions
Ruby-lang » Ruby
Versions from including (>=) 2.3.0 and before (<) 2.3.7
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
Matching versions
Ruby-lang » Ruby
Versions from including (>=) 2.5.0 and before (<) 2.5.1
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
Matching versions
Ruby-lang » Ruby
Versions from including (>=) 2.4.0 and before (<) 2.4.4
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
Matching versions
Ruby-lang » Ruby
Versions from including (>=) 2.2.0 and before (<) 2.2.10
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
Matching versions
Ruby-lang » Ruby » Version: 2.6.0 Update Preview1
cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2018-8779

Top countries where our scanners detected CVE-2018-8779

Top open port discovered on systems with this issue 80

IPs affected by CVE-2018-8779 3,630

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2018-8779!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-8779

EPSS FAQ

0.60%

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

~ 78 %

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

CVSS scores for CVE-2018-8779

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2018-8779

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-8779

https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html

[SECURITY] [DLA 1358-1] ruby1.9.1 security update
Mailing List;Third Party Advisory

CVEs referencing this url
https://www.debian.org/security/2018/dsa-4259

Debian -- Security Information -- DSA-4259-1 ruby2.3
Third Party Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2018:3731

RHSA-2018:3731 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2018:3729

RHSA-2018:3729 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html

[SECURITY] [DLA 1421-1] ruby2.1 security update
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.securitytracker.com/id/1042004

Apple macOS/OS X Multiple Remote Code Execution, Denial of Service, and Information Disclosure Attacks and Local Privilege Escalation Attacks - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/

Ruby 2.2.10 Released
Patch;Vendor Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2018:3730

RHSA-2018:3730 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html

[security-announce] openSUSE-SU-2019:1771-1: important: Security update

CVEs referencing this url
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/

Ruby 2.3.7 Released
Patch;Vendor Advisory

CVEs referencing this url
https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html

[SECURITY] [DLA 1359-1] ruby1.8 security update
Third Party Advisory

CVEs referencing this url
https://usn.ubuntu.com/3626-1/

USN-3626-1: Ruby vulnerabilities | Ubuntu security notices
Third Party Advisory

CVEs referencing this url
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/

Ruby 2.5.1 Released
Patch;Vendor Advisory

CVEs referencing this url
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/

Ruby 2.4.4 Released
Patch;Vendor Advisory

CVEs referencing this url
http://www.securityfocus.com/bid/103767

Ruby CVE-2018-8779 Security Bypass Vulnerability
Third Party Advisory;VDB Entry
https://www.ruby-lang.org/en/news/2018/03/28/poisoned-nul-byte-unixsocket-cve-2018-8779/

CVE-2018-8779: Unintentional socket creation by poisoned NUL byte in UNIXServer and UNIXSocket
Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:2028

RHSA-2019:2028 - Security Advisory - Red Hat Customer Portal

CVEs referencing this url