CVE-2019-16935

python: XSS vulnerability in the documentation XML-RPC server in server_title field

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The documentation XML-RPC server in Python through 2.7.16, 3.x through 3.6.9, and 3.7.x through 3.7.4 has XSS via the server_title field. This occurs in Lib/DocXMLRPCServer.py in Python 2.x, and in Lib/xmlrpc/server.py in Python 3.x. If set_server_title is called with untrusted input, arbitrary JavaScript can be delivered to clients that visit the http URL for this server.

La documentación del servidor XML-RPC en Python versiones hasta 2.7.16, versiones 3.x hasta 3.6.9 y versiones 3.7.x hasta 3.7.4, presenta una vulnerabilidad de tipo XSS por medio del campo server_title. Esto ocurre en Lib/DocXMLRPCServer.py en Python versión 2.x, y en Lib/xmlrpc/server.py en Python versión 3.x. Si es llamada set_server_title con una entrada no confiable, puede ser entregado un JavaScript arbitrario a los clientes que visitan la URL http para este servidor.

A reflected cross-site scripting (XSS) vulnerability was found in Python XML-RPC server. The `server_title` field is not sufficiently sanitized allowing malicious JavaScript to be injected. Successful exploitation would allow a remote attacker to execute JavaScript code within the context of the affected user.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-09-28 CVE Reserved
2019-09-28 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-09-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (25)

URL	Tag	Source
https://github.com/python/cpython/blob/35c0809158be7feae4c4f877a08b93baea2d8291/Lib/xmlrpc/server.py#L897	Third Party Advisory
https://github.com/python/cpython/blob/e007860b8b3609ce0bc62b1780efaa06241520bd/Lib/DocXMLRPCServer.py#L213	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html	Mailing List
https://lists.debian.org/debian-lts-announce/2021/04/msg00015.html	Mailing List
https://security.netapp.com/advisory/ntap-20191017-0004	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html	Third Party Advisory

URL	Date	SRC
https://bugs.python.org/issue38243	2024-08-05
https://github.com/python/cpython/pull/16373	2024-08-05

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEARDOTXCYPYELKBD2KWZ27GSPXDI3GQ	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/COATURTCY7G67AYI6UDV5B2JZTBCKIDX	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K7HNVIFMETMFWWWUNTB72KYJYXCZOS5V	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OYGESQSGIHDCIGOBVF7VXCMIE6YDWRYB	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBTGPBUABGXZ7WH7677OEM3NSP6ZEA76	2023-11-07
https://usn.ubuntu.com/4151-1	2023-11-07
https://usn.ubuntu.com/4151-2	2023-11-07
https://access.redhat.com/security/cve/CVE-2019-16935	2021-03-22
https://bugzilla.redhat.com/show_bug.cgi?id=1763229	2021-03-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 2.7.0 < 2.7.17 Search vendor "Python" for product "Python" and version " >= 2.7.0 < 2.7.17"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.0.0 < 3.5.8 Search vendor "Python" for product "Python" and version " >= 3.0.0 < 3.5.8"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.6.0 < 3.6.10 Search vendor "Python" for product "Python" and version " >= 3.6.0 < 3.6.10"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.7.0 < 3.7.5 Search vendor "Python" for product "Python" and version " >= 3.7.0 < 3.7.5"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		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"		esm		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"				19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04"		-		Affected