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osvGoogleOSV:PSF-2022-5
HistoryAug 23, 2022 - 12:00 a.m.

http.server: Open Redirection if the URL path starts with //

2022-08-2300:00:00
Google
osv.dev
11
python
open redirection
vulnerability
information disclosure
http.server

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

AI Score

6.4

Confidence

Low

EPSS

0.002

Percentile

59.7%

Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginning of URI path which may leads to information disclosure. NOTE: this is disputed by a third party because the http.server.html documentation page states “Warning: http.server is not recommended for production. It only implements basic security checks.”

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

AI Score

6.4

Confidence

Low

EPSS

0.002

Percentile

59.7%