CVE-2018-20060

python-urllib3: Cross-host redirect does not remove Authorization header allow for credential exposure

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the Authorization header to be exposed to unintended hosts or transmitted in cleartext.

urllib3 en versiones anteriores a la 1.23 no elimina la cabecera HTTP Authorization al seguir una redirección cross-origin (i.e., una redirección que difiere en host, puerto o esquema). Esto puede permitir que las credenciales de la cabecera Authorization se expongan a hosts no planeados o se transmitan en texto claro.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-12-11 CVE Reserved
2018-12-11 CVE Published
2024-08-05 CVE Updated
2024-09-25 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-522: Insufficiently Protected Credentials

CAPEC

References (12)

URL	Tag	Source
https://github.com/urllib3/urllib3/blob/master/CHANGES.rst	Release Notes
https://github.com/urllib3/urllib3/issues/1316	Third Party Advisory
https://github.com/urllib3/urllib3/pull/1346	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1649153	2020-05-12

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html	2023-11-07
https://access.redhat.com/errata/RHSA-2019:2272	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5SJERZEJDSUYQP7BNBXMBHRHGY26HRZD	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BXLAXHM3Z6DUCXZ7ZXZ2EAYJXWDCZFCT	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWP36YW3KSVLXDBY3QJKDYEPCIMN3VQZ	2023-11-07
https://usn.ubuntu.com/3990-1	2023-11-07
https://access.redhat.com/security/cve/CVE-2018-20060	2020-05-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Search vendor "Python"		Urllib3 Search vendor "Python" for product "Urllib3"				< 1.23 Search vendor "Python" for product "Urllib3" and version " < 1.23"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				28 Search vendor "Fedoraproject" for product "Fedora" and version "28"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				29 Search vendor "Fedoraproject" for product "Fedora" and version "29"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				30 Search vendor "Fedoraproject" for product "Fedora" and version "30"		-		Affected