CVE-2019-11324

python-urllib3: Certification mishandle when error should be thrown

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates, which results in SSL connections succeeding in situations where a verification failure is the correct outcome. This is related to use of the ssl_context, ca_certs, or ca_certs_dir argument.

La urllib3 library versión anterior a 1.24.2 para Python maneja de forma incorrecta ciertos casos en los que el ajuste deseado de certificados de CA es diferente del almacén del sistema operativo de certificados de CA, lo que da como resultado que las conexiones SSL tengan éxito en situaciones en las que una falla de comprobación sea el resultado correcto. Esto está relacionado con el uso de los argumentos ssl_context, ca_certs o ca_certs_dir.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-04-18 CVE Reserved
2019-04-18 CVE Published
2024-08-04 CVE Updated
2024-09-08 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (13)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2019/04/19/1	Mailing List
https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html	Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://github.com/urllib3/urllib3/compare/a6ec68a...1efadf4	2023-11-07

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.html	2023-11-07
https://access.redhat.com/errata/RHSA-2019:3335	2023-11-07
https://access.redhat.com/errata/RHSA-2019:3590	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2	2023-11-07
https://usn.ubuntu.com/3990-1	2023-11-07
https://access.redhat.com/security/cve/CVE-2019-11324	2020-05-12
https://bugzilla.redhat.com/show_bug.cgi?id=1702473	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"				< 1.24.2 Search vendor "Python" for product "Urllib3" and version " < 1.24.2"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04"		-		Affected