CVE-2020-26137medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
urllib3 before 1.25.9 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of putrequest(). NOTE: this is similar to CVE-2020-26116.
References
https://bugs.python.org/issue39603
https://github.com/urllib3/urllib3/commit/1dd69c5c5982fae7c87a620d487c2ebf7a6b436b
https://github.com/urllib3/urllib3/pull/1800
https://usn.ubuntu.com/4570-1/
https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
Details
Source: MITRE
Published: 2020-09-30
Updated: 2021-06-15
Type: CWE-74
Risk Information
CVSS v2
Base Score: 6.4
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N
Impact Score: 4.9
Exploitability Score: 10
Severity: MEDIUM
CVSS v3
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Impact Score: 2.5
Exploitability Score: 3.9
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 153744 | Photon OS 2.0: Python PHSA-2021-2.0-0393 | Nessus | PhotonOS Local Security Checks | medium |
| 153687 | EulerOS 2.0 SP9 : python-urllib3 (EulerOS-SA-2021-2541) | Nessus | Huawei Local Security Checks | medium |
| 153685 | EulerOS 2.0 SP9 : python-urllib3 (EulerOS-SA-2021-2565) | Nessus | Huawei Local Security Checks | medium |
| 153655 | EulerOS 2.0 SP8 : python-urllib3 (EulerOS-SA-2021-2485) | Nessus | Huawei Local Security Checks | medium |
| 152896 | openSUSE 15 Security Update : aws-cli, python-boto3, python-botocore, python-service_identity, python-trustme, python-urllib3 (openSUSE-SU-2021:1206-1) | Nessus | SuSE Local Security Checks | medium |
| 152767 | openSUSE 15 Security Update : aws-cli, python-boto3, python-botocore, python-service_identity, python-trustme, python-urllib3 (openSUSE-SU-2021:2817-1) | Nessus | SuSE Local Security Checks | medium |
| 152766 | SUSE SLED15 / SLES15 Security Update : aws-cli, python-boto3, python-botocore, python-service_identity, python-trustme, python-urllib3 (SUSE-SU-2021:2817-1) | Nessus | SuSE Local Security Checks | medium |
| 152764 | Oracle Linux 8 : python27:2.7 (ELSA-2021-1761) | Nessus | Oracle Linux Local Security Checks | critical |
| 150967 | Amazon Linux 2 : python-urllib3 (ALAS-2021-1668) | Nessus | Amazon Linux Local Security Checks | medium |
| 150806 | Debian DLA-2686-1 : python-urllib3 security update | Nessus | Debian Local Security Checks | medium |
| 150239 | Photon OS 3.0: Python PHSA-2021-3.0-0246 | Nessus | PhotonOS Local Security Checks | medium |
| 149964 | Oracle Linux 8 : python-urllib3 (ELSA-2021-1631) | Nessus | Oracle Linux Local Security Checks | medium |
| 149749 | CentOS 8 : python27:2.7 (CESA-2021:1761) | Nessus | CentOS Local Security Checks | critical |
| 149747 | CentOS 8 : python-urllib3 (CESA-2021:1631) | Nessus | CentOS Local Security Checks | medium |
| 149710 | RHEL 8 : python27:2.7 (RHSA-2021:1761) | Nessus | Red Hat Local Security Checks | critical |
| 149706 | RHEL 8 : python-urllib3 (RHSA-2021:1631) | Nessus | Red Hat Local Security Checks | medium |
| 145382 | openSUSE Security Update : python-urllib3 (openSUSE-2020-2282) | Nessus | SuSE Local Security Checks | medium |
| 145229 | RHEL 7 : OpenShift Container Platform 3.11.374 bug fix and (RHSA-2021:0079) | Nessus | Red Hat Local Security Checks | medium |
| 145089 | RHEL 7 : OpenShift Container Platform 4.5.27 packages and (RHSA-2021:0034) | Nessus | Red Hat Local Security Checks | medium |
| 144316 | openSUSE Security Update : python-urllib3 (openSUSE-2020-2237) | Nessus | SuSE Local Security Checks | medium |
| 141177 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : urllib3 vulnerability (USN-4570-1) | Nessus | Ubuntu Local Security Checks | medium |