Vulnerability in Apache Tomcat
CVSS score
4.8
EPSS probability
%9.4
Risk score
0.5
Published
6 y ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2020-1935 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2020-1935 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | apache | Apache Tomcat | View |
| 2 | apache | tomcat | View |
| 3 | apache | tomcat | View |
| 4 | apache | tomcat | View |
| 5 | apache | tomcat | View |
| 6 | debian | debian linux | View |
| 7 | debian | debian linux | View |
| 8 | debian | debian linux | View |
| 9 | canonical | ubuntu linux | View |
| 10 | opensuse | leap | View |
| 11 | netapp | data availability services | View |
| 12 | netapp | oncommand system manager | View |
| 13 | oracle | agile engineering data management | View |
| 14 | oracle | agile product lifecycle management | View |
| 15 | oracle | agile product lifecycle management | View |
| 16 | oracle | agile product lifecycle management | View |
| 17 | oracle | communications element manager | View |
| 18 | oracle | communications element manager | View |
| 19 | oracle | communications element manager | View |
| 20 | oracle | communications instant messaging server | View |
| 21 | oracle | health sciences empirica inspections | View |
| 22 | oracle | health sciences empirica signal | View |
| 23 | oracle | hospitality guest access | View |
| 24 | oracle | hospitality guest access | View |
| 25 | oracle | hyperion infrastructure technology | View |
| 26 | oracle | instantis enterprisetrack | View |
| 27 | oracle | mysql enterprise monitor | View |
| 28 | oracle | mysql enterprise monitor | View |
| 29 | oracle | retail order broker | View |
| 30 | oracle | siebel ui framework | View |
| 31 | oracle | transportation management | View |
| 32 | oracle | workload manager | View |
| 33 | oracle | workload manager | View |
| 34 | oracle | workload manager | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 5.8 | CVSS V2 | — | AV:N/AC:M/Au:N/C:P/I:P/A:N | NVD |
| 4.8 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-1935 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-1935 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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