medium4.8
CVE-2021-20220
HTTP request smuggling in Undertow
Impact
A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | io.undertow:undertow-core | >= 2.1.0, < 2.1.6 | 2.1.6 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Undertow | before 2.0.34 from 2.1.0 before 2.1.6 |
| Netapp | Active Iq Unified Manager | All versions |
| Netapp | Oncommand Workflow Automation | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1923133
- https://security.netapp.com/advisory/ntap-20220210-0013/
- https://github.com/advisories/GHSA-qjwc-v72v-fq6r
- https://nvd.nist.gov/vuln/detail/CVE-2021-20220
- https://github.com/undertow-io/undertow/commit/9e797b2f99617fdad0471eaa88c711ee7f44605f