CVE-2020-1935 Details

CVE-2020-1935

Published: 2020-02-24
Last Modified: 2021-05-04
CVE Author: NIST National Vulnerability Database
CVE Assigner: security@apache.org
Summary

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.

Analysis
Common Vulnerability Score System v2.0
Severity Medium
Base Score 5.8/10
Exploit Score 8.6/10
Access Vector Network
Access Complexity Medium
Authentication None
Impact Score 4.9/10
Confidentiality Impact Partial
Availability Impact None
Integrity Impact Partial
Vector String AV:N/AC:M/Au:N/C:P/I:P/A:N
Common Vulnerability Score System v3.1
Severity Medium
Base Score 4.8/10
Exploit Score 2.2/10
Access Vector Network
Access Complexity High
Privileges Required None
Impact Score 2.5/10
Confidentiality Impact Low
Availability Impact None
Integrity Impact Low
Scope Unchanged
User Interaction None
Vector String CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Yes 7.0.0 -
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Yes 8.5.0 -
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Yes 9.0.0 -
cpe:2.3:a:apache:tomcat:9.0.0:-:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:* Yes - -
cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:* Yes - -
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Yes - -
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:* Yes 3.0.0 -
cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:* Yes - -
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.3:*: Yes - -
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.5:*: Yes - -
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*: Yes - -
cpe:2.3:a:oracle:communications_element_manager:8.1.1:*:*:*: Yes - -
cpe:2.3:a:oracle:communications_element_manager:8.2.0:*:*:*: Yes - -
cpe:2.3:a:oracle:communications_element_manager:8.2.1:*:*:*: Yes - -
cpe:2.3:a:oracle:communications_instant_messaging_server:10. Yes - -
cpe:2.3:a:oracle:health_sciences_empirica_inspections:1.0.1. Yes - -
cpe:2.3:a:oracle:health_sciences_empirica_signal:7.3.3:*:*:* Yes - -
cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*: Yes - -
cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*: Yes - -
cpe:2.3:a:oracle:hyperion_infrastructure_technology:11.1.2.4 Yes - -
cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:* Yes 17.1 -
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* Yes 4.0.0 -
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* Yes 8.0.0 -
cpe:2.3:a:oracle:retail_order_broker:15.0:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:oracle:transportation_management:6.3.7:*:*:*:*:*:* Yes - -
cpe:2.3:a:oracle:workload_manager:12.2.0.1:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:* Yes - -
References

https://lists.apache.org/thread.html/r127f76181aceffea2bd4711b03c595d0f115f63e020348fe92
https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f
https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81
https://security.netapp.com/advisory/ntap-20200327-0005/
https://www.debian.org/security/2020/dsa-4673
https://www.debian.org/security/2020/dsa-4680
https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://lists.apache.org/thread.html/r441c1f30a252bf14b07396286f6abd8089ce4240e91323211f
https://lists.apache.org/thread.html/r660cd379afe346f10d72c0eaa8459ccc95d83aff181671b7e9
https://lists.apache.org/thread.html/rd547be0c9d821b4b1000a694b8e58ef9f5e2d66db03a31dfe7
https://lists.apache.org/thread.html/ra5dee390ad2d60307b8362505c059cd6a726de4d146d63dfce
https://lists.apache.org/thread.html/r80e9c8417c77d52c62809168b96912bda70ddf7748f19f8210
https://usn.ubuntu.com/4448-1/
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://lists.apache.org/thread.html/r9ce7918faf347e7aac32be930bf26c233b0b140fe37af0bb29

CVE ID
CVE-2020-1935
Published
2020-02-24
Modified
2021-05-04
CVSSv2.0
Medium
CVSSv3.1
Medium
PCI Compliance
Fail
US-CERT Alert
No
CWE
CWE-444

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