Vulnerability in NetApp Oncommand Workflow Automation
CVE-2021-43797
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.029 (86.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- NetApp Oncommand Workflow Automation
- NetApp Snapcenter
- Netty — versions <= 4.1.7.0.Final
- Oracle Banking Deposits And Lines Of Credit Servicing — versions 2.7
- Oracle Banking Party Management — versions 2.7.0
- Oracle Banking Platform — versions 2.6.2
- Oracle Coherence — versions 12.2.1.4.0, 14.1.1.0.0
- Oracle Communications Cloud Native Core Binding Support Function — versions 1.11.0
- Oracle Communications Cloud Native Core Network Slice Selection Function — versions 1.8.0
- Oracle Communications Cloud Native Core Policy — versions 1.15.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/netty/netty/security/advisories/GHSA-wx5j-54mm-rqqq (Third Party Advisory)
- github.com/netty/netty/commit/07aa6b5938a8b6ed7a6586e066400e2643897323 (Patch, Third Party Advisory)
- www.oracle.com/security-alerts/cpuapr2022.html (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220107-0003/ (Third Party Advisory)
- www.oracle.com/security-alerts/cpujul2022.html (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/01/msg00008.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5316 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-43797?
- CVE-2021-43797 is a medium-severity vulnerability in NetApp Oncommand Workflow Automation, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 6.5/10. Published 2021-12-09.
- How severe is CVE-2021-43797?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-43797 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.