A security regression of CVE-2019-9636 was discovered in python since commit d537ab0ff9767ef024f26246899728f0116b1ec3 affecting versions 2.7, 3.5, 3.6, 3.7 and from v3.8.0a4 through v3.8.0b1, which still allows an attacker to exploit CVE-2019-9636 by abusing the user and password parts of a URL. When an application parses user-supplied URLs to store cookies, authentication credentials, or other kind of information, it is possible for an attacker to provide specially crafted URLs to make the application locate host-related information (e.g. cookies, authentication data) and send them to a different host than where it should, unlike if the URLs had been correctly parsed. The result of an attack may vary based on the application.

References[email protected][email protected]/message/2ORNTF62QPLMJXIQ7KTZQ2776LMIXEKL/[email protected]/message/44TS66GJMO5H3RLMVZEBGEFTB6O2LJJU/[email protected]/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/[email protected]/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/[email protected]/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/[email protected]/message/HQEQLXLOCR3SNM3AA5RRYJFQ5AZBYJ4L/[email protected]/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/[email protected]/message/KRYFIMISZ47NTAU3XWZUOFB7CYL62KES/[email protected]/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/[email protected]/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/


Source: MITRE

Published: 2019-06-07

Updated: 2020-08-22

Type: CWE-255

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL