The password hasher in contrib/auth/hashers.py in Django before 1.8.10 and 1.9.x before 1.9.3 allows remote attackers to enumerate users via a timing attack involving login requests.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2016:0505 advisory.

    Django is a high-level Python Web framework that encourages rapid development and a clean, pragmatic     design. It focuses on automating as much as possible and adhering to the DRY (Don't Repeat Yourself)     principle.

    Security Fix(es):

    * An open-redirect flaw was found in the way Django's django.utils.http.is_safe_url() function filtered     authentication URLs. An attacker able to trick a victim into visiting a crafted URL could use this flaw to     redirect that victim to a malicious site. (CVE-2016-2512)

    * A timing attack flaw was found in the way Django's PBKDF2PasswordHasher performed password hashing.
    Passwords hashed with an older version of PBKDF2PasswordHasher used less hashing iterations, and thus     allowed an attacker to enumerate existing users based on the time differences in the login requests.
    (CVE-2016-2513)

    Red Hat would like to thank the Django project for reporting these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for python3-Django to version 1.18.18 fixes multiple issues. Security issues fixed :

  - CVE-2018-7537: Fixed catastrophic backtracking in     django.utils.text.Truncator. (bsc#1083305)

  - CVE-2018-7536: Fixed catastrophic backtracking in urlize     and urlizetrunc template filters (bsc#1083304).

  - CVE-2016-7401: CSRF protection bypass on a site with     Google Analytics (bsc#1001374).

  - CVE-2016-2513: User enumeration through timing     difference on password hasher work factor upgrade     (bsc#968000).

  - CVE-2016-2512: Fixed malicious redirect and possible XSS     attack via user-supplied redirect URLs containing basic     auth (bsc#967999).

  - CVE-2016-9013: User with hardcoded password created when     running tests on Oracle (bsc#1008050).

  - CVE-2016-9014: DNS rebinding vulnerability when     DEBUG=True (bsc#1008047).

  - CVE-2017-7234: Open redirect vulnerability in     django.views.static.serve() (bsc#1031451).

  - CVE-2017-7233: Open redirect and possible XSS attack via     user-supplied numeric redirect URLs (bsc#1031450).

  - CVE-2017-12794: Fixed XSS possibility in traceback     section of technical 500 debug page (bsc#1056284)

This update for python-Django to version 1.18.18 fixes multiple issues. Security issues fixed :

  - CVE-2018-7537: Fixed catastrophic backtracking in     django.utils.text.Truncator. (bsc#1083305)

  - CVE-2018-7536: Fixed catastrophic backtracking in urlize     and urlizetrunc template filters (bsc#1083304).

  - CVE-2016-7401: CSRF protection bypass on a site with     Google Analytics (bsc#1001374).

  - CVE-2016-2513: User enumeration through timing     difference on password hasher work factor upgrade     (bsc#968000).

  - CVE-2016-2512: Fixed malicious redirect and possible XSS     attack via user-supplied redirect URLs containing basic     auth (bsc#967999).

  - CVE-2016-9013: User with hardcoded password created when     running tests on Oracle (bsc#1008050).

  - CVE-2016-9014: DNS rebinding vulnerability when     DEBUG=True (bsc#1008047).

  - CVE-2017-7234: Open redirect vulnerability in     django.views.static.serve() (bsc#1031451).

  - CVE-2017-7233: Open redirect and possible XSS attack via     user-supplied numeric redirect URLs (bsc#1031450).

  - CVE-2017-12794: Fixed XSS possibility in traceback     section of technical 500 debug page (bsc#1056284)

Several vulnerabilities were discovered in Django, a high-level Python web development framework. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2016-2512     Mark Striemer discovered that some user-supplied     redirect URLs containing basic authentication     credentials are incorrectly handled, potentially     allowing a remote attacker to perform a malicious     redirect or a cross-site scripting attack.

  - CVE-2016-2513     Sjoerd Job Postmus discovered that Django allows user     enumeration through timing difference on password hasher     work factor upgrades.

fix regression in 1.8.10 ---- update to 1.8.10, fixing CVE-2016-2512, CVE-2016-2513

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Tim Graham reports :

Malicious redirect and possible XSS attack via user-supplied redirect URLs containing basic auth

User enumeration through timing difference on password hasher work factor upgrade

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2915-1 advisory.

    Mark Striemer discovered that Django incorrectly handled user-supplied redirect URLs containing basic     authentication credentials. A remote attacker could possibly use this issue to perform a cross-site     scripting attack or a malicious redirect. (CVE-2016-2512)

    Sjoerd Job Postmus discovered that Django incorrectly handled timing when doing password hashing     operations. A remote attacker could possibly use this issue to perform user enumeration. (CVE-2016-2513)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
210163	RHEL 7 : python-django (RHSA-2016:0505)	Nessus	Red Hat Local Security Checks	high
108641	openSUSE Security Update : python3-Django (openSUSE-2018-318)	Nessus	SuSE Local Security Checks	critical
108640	openSUSE Security Update : python-Django (openSUSE-2018-317)	Nessus	SuSE Local Security Checks	critical
90409	Debian DSA-3544-1 : python-django - security update	Nessus	Debian Local Security Checks	high
90015	Fedora 22 : python-django-1.8.11-1.fc22 (2016-b004d6d8f7)	Nessus	Fedora Local Security Checks	high
90012	Fedora 23 : python-django-1.8.11-1.fc23 (2016-11183ea08d)	Nessus	Fedora Local Security Checks	high
89728	FreeBSD : django -- multiple vulnerabilities (f9e6c0d1-e4cc-11e5-b2bd-002590263bf5)	Nessus	FreeBSD Local Security Checks	high
89079	Ubuntu 14.04 LTS : Django vulnerabilities (USN-2915-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2016-2513

low

Tenable Plugins

high

critical

critical

high

high

high

high

high