Bug 1944822 (CVE-2021-29418)

Summary:	CVE-2021-29418 nodejs-netmask: incorrectly parses an IP address that has octal integer with invalid character
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	extras-orphan, gghezzo, gparvin, jramanat, jweiser, nodejs-sig, stcannon, thee
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nodejs-netmask 2.0.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-05-04 20:33:42 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1944823, 1944824, 1945796, 1945797, 1945798, 1945799, 1946344
Bug Blocks:	1944830

Description Guilherme de Almeida Suckevicz 2021-03-30 17:55:46 UTC

The netmask package before 2.0.1 for Node.js mishandles certain unexpected characters in an IP address string, such as an octal digit of 9. This (in some situations) allows attackers to bypass access control that is based on IP addresses. NOTE: this issue exists because of an incomplete fix for CVE-2021-28918.

Reference:
https://vuln.ryotak.me/advisories/6.txt

Upstream patch:
https://github.com/rs/node-netmask/commit/3f19a056c4eb808ea4a29f234274c67bc5a848f4

Comment 1 Guilherme de Almeida Suckevicz 2021-03-30 17:56:12 UTC

Created nodejs-netmask tracking bugs for this issue:

Affects: epel-7 [bug 1944824]
Affects: fedora-32 [bug 1944823]

Comment 3 Jan Werner 2021-04-20 20:00:10 UTC

Statement:

The impact of this flaw largely depends on the environment where the affected library is being used. This flaw could be used to redirect an adversary to an exposed, unprotected endpoint. Depending on the functionality of the affected endpoint that could result in a loss of confidentiality, integrity and availability. The affected library is used in Red Hat Advanced Cluster Management for Kubernetes only in the development and build processes. Consequently the severity of this flaw to RHACM is downgraded to low.

Comment 4 Jan Werner 2021-04-20 20:00:12 UTC

External References:

https://sick.codes/universal-netmask-npm-package-used-by-270000-projects-vulnerable-to-octal-input-data-server-side-request-forgery-remote-file-inclusion-local-file-inclusion-and-more-cve-2021-28918

Comment 5 errata-xmlrpc 2021-05-04 20:14:41 UTC

This issue has been addressed in the following products:

  Red Hat Advanced Cluster Management for Kubernetes 2.2 for RHEL 8
  Red Hat Advanced Cluster Management for Kubernetes 2.2 for RHEL 7

Via RHSA-2021:1499 https://access.redhat.com/errata/RHSA-2021:1499

Comment 6 Product Security DevOps Team 2021-05-04 20:33:42 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-29418

Comment 7 errata-xmlrpc 2021-08-06 00:50:47 UTC

This issue has been addressed in the following products:

  Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 7
  Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8

Via RHSA-2021:3016 https://access.redhat.com/errata/RHSA-2021:3016