RCE in Apache Storm
CVE-2021-38294
A Command Injection vulnerability exists in the getTopologyHistory service of the Apache Storm 2.x prior to 2.2.1 and Apache Storm 1.x prior to 1.2.4. A specially crafted thrift request to the Nimbus server allows Remote Code Execution (RCE) prior to authentication.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.838 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.845 · newest: 0.838 · change: -0.007
Affected products
- Apache Storm
- Apache Software Foundation Storm — versions v1.0.0, Apache Storm
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r5fe881f6ca883908b7a0f005d35115af49f43beea7a8b0915… (Mailing List, Vendor Advisory)
- seclists.org/oss-sec/2021/q4/44 (Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/165019/Apache-Storm-Nimbus-2.2.0-Command-Executio… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-38294?
- CVE-2021-38294 is a critical-severity vulnerability in Apache Storm, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2021-10-25.
- How severe is CVE-2021-38294?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-38294 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.