CVE-2021-22884 Information

Description

Node.js before 10.24.0 12.21.0 14.16.0 and 15.10.0 is vulnerable to DNS rebinding attacks as the whitelist includes “localhost6”. When “localhost6” is not present in /etc/hosts it is just an ordinary domain that is resolved via DNS i.e. over network. If the attacker controls the victim’s DNS server or can spoof its responses the DNS rebinding protection can be bypassed by using the “localhost6” domain. As long as the attacker uses the “localhost6” domain they can still apply the attack described in CVE-2018-7160.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/#node-js-inspector-dns-rebinding-vulnerability-cve-2018-7160 https://hackerone.com/reports/1069487 https://nodejs.org/en/blog/vulnerability/february-2021-security-releases/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F45Y7TXSU33MTKB6AGL2Q5V5ZOCNPKOG/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E4FRS5ZVK4ZQ7XIJQNGIKUXG2DJFHLO7/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HSYFUGKFUSZ27M5TEZ3FKILWTWFJTFAZ/ https://security.netapp.com/advisory/ntap-20210416-0001/ https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com//security-alerts/cpujul2021.html https://security.netapp.com/advisory/ntap-20210723-0001/ https://www.oracle.com/security-alerts/cpuoct2021.html https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5