by Kastro
Paper/Archive/CVE-2023-54397

CVE-2023-54397

tornadoweb tornado — Tornado before 6.3.3 HTTP Request Smuggling via Content-Length

EPSS 0.4%CVSS 9.0
critical.is priorityof 100
33
CVSS 9.0 (CNA)9.0 / 10 × 3027.0Not in CISA KEV+300.0EPSS percentile 31.7.317 × 206.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Attackers can send crafted HTTP requests with these characters to bypass proxy validation and smuggle requests when deployed behind certain proxies.

Affected

ProductAffectedFixed inSource
tornado< 6.3.36.3.3CNA

Scores by source

VulnCheck (CNA)9.0CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
VulnCheck (CNA)7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

advisorygithub.com/tornadoweb/tornado/security/advisories/GHSA-qppv-j76h-2rpxwriteupvulncheck.com/advisories/tornado-before-6.3.3-http-request-smuggling-via-content-length