CVE-2021-22884

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.71% Top 30%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory nodejs.org Vendor Advisory nodejs.org
Affected: NodeJS Node
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/1069487 issue tracking exploit third party advisory
https://nodejs.org/en/blog/vulnerability/february-2021-security-releases/ release notes patch vendor advisory
https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/#node-js-inspector-dns-rebinding-vulnerability-cve-2018-7160 release notes patch vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E4FRS5ZVK4ZQ7XIJQNGIKUXG2DJFHLO7/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F45Y7TXSU33MTKB6AGL2Q5V5ZOCNPKOG/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSYFUGKFUSZ27M5TEZ3FKILWTWFJTFAZ/ vendor advisory
https://www.oracle.com/security-alerts/cpuApr2021.html third party advisory patch
https://security.netapp.com/advisory/ntap-20210416-0001/ third party advisory
https://www.oracle.com//security-alerts/cpujul2021.html third party advisory patch
https://www.oracle.com/security-alerts/cpuoct2021.html third party advisory patch
https://security.netapp.com/advisory/ntap-20210723-0001/ third party advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-22884?
CVE-2021-22884 has been scored as a high severity vulnerability.
How to fix CVE-2021-22884?
To fix CVE-2021-22884, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22884 being actively exploited in the wild?
It is possible that CVE-2021-22884 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22884?
CVE-2021-22884 affects NodeJS Node.
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