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archlinuxArchLinuxASA-201907-3
HistoryJul 06, 2019 - 12:00 a.m.

[ASA-201907-3] python2-django: silent downgrade

2019-07-0600:00:00
security.archlinux.org
17

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

78.3%

Arch Linux Security Advisory ASA-201907-3

Severity: High
Date : 2019-07-06
CVE-ID : CVE-2019-12781
Package : python2-django
Type : silent downgrade
Remote : Yes
Link : https://security.archlinux.org/AVG-1001

Summary

The package python2-django before version 1.11.22-1 is vulnerable to
silent downgrade.

Resolution

Upgrade to 1.11.22-1.

pacman -Syu “python2-django>=1.11.22-1”

The problem has been fixed upstream in version 1.11.22.

Workaround

None.

Description

An HTTP request is not redirected to HTTPS when the
SECURE_PROXY_SSL_HEADER and SECURE_SSL_REDIRECT settings are used, and
the proxy connects to Django via HTTPS. In other words,
django.http.HttpRequest.scheme has incorrect behavior when a client
uses HTTP.

Impact

A remote attacker is able to perform a man-in-the-middle attack if a
HTTP request is not redirected to HTTPS.

References

https://docs.djangoproject.com/en/2.2/releases/2.2.3/
https://www.openwall.com/lists/oss-security/2019/07/01/3
https://github.com/django/django/commit/77706a3e4766da5d5fb75c4db22a0a59a28e6cd6
https://security.archlinux.org/CVE-2019-12781

OSVersionArchitecturePackageVersionFilename
ArchLinuxanyanypython2-django< 1.11.22-1UNKNOWN

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

78.3%