Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2020-13935

CWE-835CWE-400 — Uncontrolled Resource Consumption21 documents11 sources
Severity
7.5HIGH
EPSS
91.7%
top 0.31%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
18
Oracle Blockchain PlatformApache TomcatNetapp Oncommand System Manager+15 more
Timeline
PublishedJul 14
Latest updateFeb 8

Description

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages21 packages

▶Mavenorg.apache.tomcat:tomcat10.0.0-M1 — 10.0.0-M7+3
▶NVDapache/tomcat7.0.27 — 7.0.104+4
▶CVEListV5apache_tomcatApache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56, 7.0.27 to 7.0.104
▶Debiantomcat9< 9.0.37-1+3
▶Ubuntutomcat8< 8.0.32-1ubuntu1.13

Also affects: Debian Linux 10.0, 9.0, Ubuntu Linux 16.04, 20.04

Patches

Patch: www.oracle.com ↗Patch: www.oracle.com ↗Patch: www.oracle.com ↗

🔴Vulnerability Details

6
GHSA
Infinite Loop in Apache Tomcat↗2022-02-08
▶
OSV
Infinite Loop in Apache Tomcat↗2022-02-08
▶
OSV
tomcat9 vulnerabilities↗2020-10-21
▶
OSV
tomcat8 vulnerabilities↗2020-08-04
▶
CVEList
CVE-2020-13935: The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10↗2020-07-14
▶

💥Exploits & PoCs

1
Nuclei
Apache Tomcat WebSocket Frame Payload Length Validation Denial of Service
▶

📋Vendor Advisories

10
Oracle
Oracle Oracle Commerce Risk Matrix: Endeca Application Controller (Apache Tomcat) — CVE-2020-13935↗2022-01-15
▶
Oracle
Oracle Oracle Supply Chain Risk Matrix: Installation Issues (Apache Tomcat) — CVE-2020-13935↗2021-07-15
▶
Oracle
Oracle Oracle Fusion Middleware Risk Matrix: MFT Runtime Server (Apache Tomcat) — CVE-2020-13935↗2021-01-15
▶
Ubuntu
Tomcat vulnerabilities↗2020-10-21
▶
Oracle
Oracle Oracle Database Server Risk Matrix: Workload Manager (Apache Tomcat) — CVE-2020-13935↗2020-10-15
▶

💬Community

3
Bugzilla
CVE-2020-14384 jbossweb: Incomplete fix of CVE-2020-13935 for WebSocket in JBossWeb could lead to DoS↗2020-09-02
▶
Bugzilla
CVE-2020-13935 tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS [fedora-all]↗2020-08-10
▶
Bugzilla
CVE-2020-13935 tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS↗2020-07-15
▶
CVE-2020-13935 (HIGH CVSS 7.5) | The payload length in a WebSocket f | cvebase.io