CVE-2020-1935

CVSS V2 Medium 5.8 CVSS V3 Medium 4.8
Description
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.
Overview
  • CVE ID
  • CVE-2020-1935
  • Assigner
  • security@apache.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-02-24T22:15:11
  • Last Modified Date
  • 2021-05-04T19:19:13
Weakness Enumerations
CWE URL
CWE-444 http://cwe.mitre.org/data/definitions/444.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 1 OR 7.0.0 7.0.99
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 1 OR 8.5.0 8.5.50
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 1 OR 9.0.0 9.0.30
cpe:2.3:a:apache:tomcat:9.0.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:* 1 OR 3.0.0 3.1.3
cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_element_manager:8.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_element_manager:8.2.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_element_manager:8.2.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:health_sciences_empirica_inspections:1.0.1.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:health_sciences_empirica_signal:7.3.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:hyperion_infrastructure_technology:11.1.2.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:* 1 OR 17.1 17.3
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* 1 OR 4.0.0 4.0.12
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* 1 OR 8.0.0 8.0.20
cpe:2.3:a:oracle:retail_order_broker:15.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:* 1 OR 20.5
cpe:2.3:a:oracle:transportation_management:6.3.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:workload_manager:12.2.0.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 4.8
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 2.5
References
Reference URL Reference Tags
https://lists.apache.org/thread.html/r127f76181aceffea2bd4711b03c595d0f115f63e020348fe925a916c%40%3Cannounce.tomcat.apache.org%3E Mailing List Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html Broken Link Mailing List Third Party Advisory
https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E Mailing List Vendor Advisory
https://security.netapp.com/advisory/ntap-20200327-0005/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4673 Third Party Advisory
https://www.debian.org/security/2020/dsa-4680 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://lists.apache.org/thread.html/r441c1f30a252bf14b07396286f6abd8089ce4240e91323211f1a2d75@%3Cusers.tomcat.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r660cd379afe346f10d72c0eaa8459ccc95d83aff181671b7e9076919@%3Cusers.tomcat.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/rd547be0c9d821b4b1000a694b8e58ef9f5e2d66db03a31dfe77c4b18@%3Cusers.tomcat.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/ra5dee390ad2d60307b8362505c059cd6a726de4d146d63dfce1e05e7@%3Cusers.tomcat.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r80e9c8417c77d52c62809168b96912bda70ddf7748f19f8210f745b1@%3Cusers.tomcat.apache.org%3E Mailing List Vendor Advisory
https://usn.ubuntu.com/4448-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
https://lists.apache.org/thread.html/r9ce7918faf347e7aac32be930bf26c233b0b140fe37af0bb294158b6@%3Cdev.tomcat.apache.org%3E Mailing List Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-1935
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1935
History
Created Old Value New Value Data Type Notes
2022-05-10 16:17:37 Added to TrackCVE
2022-12-04 11:45:04 2020-02-24T22:15Z 2020-02-24T22:15:11 CVE Published Date updated
2022-12-04 11:45:04 2021-05-04T19:19:13 CVE Modified Date updated
2022-12-04 11:45:04 Analyzed Vulnerability Status updated