THREATPORT/VULNERABILITY/CVE-2013-4286
MEDIUM SEVERITY

CVE-2013-4286

Tomcat vulnerability

CVSS
5.8
EPSS
16.8%
EPSS pct
97th
Exploited
No known
Apache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incorrect identification of a request's length and conduct request-smuggling attacks via (1) multiple Content-Length headers or (2) a Content-Length header and a "Transfer-Encoding: chunked" header. NOTE: this vulnerability exists because of an incomplete fix for CVE-2005-2090.
Affected vendor
Apache
Affected product
Tomcat
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2014-02-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity.

Its EPSS score of 16.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2013-4286

  • Confirm whether Apache Tomcat is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2013-4286.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-4286

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-4286 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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