Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The payloads can be crafted by an attacker to hijack user sessions, poison cookies, perform clickjacking, and a multitude of other attacks depending on the architecture of the underlying system. The attack was possible due to a bug in processing of carrier-return symbols in the HTTP header names.
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
| Link | Tags |
|---|---|
| https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/ | vendor advisory |
| https://hackerone.com/reports/922597 | permissions required |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html | third party advisory vendor advisory |
| https://security.netapp.com/advisory/ntap-20201009-0004/ | third party advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ | vendor advisory |
| https://security.gentoo.org/glsa/202101-07 | third party advisory vendor advisory |