Vulnerabilities > CVE-2011-4138 - Improper Input Validation vulnerability in Djangoproject Django

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
low complexity
djangoproject
CWE-20
nessus

Summary

The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL's validity through a HEAD request, but then uses a GET request for the new target URL in the case of a redirect, which might allow remote attackers to trigger arbitrary GET requests with an unintended source IP address via a crafted Location header.

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2012-294.NASL
    descriptionpython-django update version to 1.2.7 fixes several security issues including denial of service, CSRF and information leaks: https://www.djangoproject.com/weblog/2011/sep/10/127/
    last seen2020-06-05
    modified2014-06-13
    plugin id74633
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/74633
    titleopenSUSE Security Update : python-django (openSUSE-SU-2012:0653-1)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2332.NASL
    descriptionPaul McMillan, Mozilla and the Django core team discovered several vulnerabilities in Django, a Python web framework : - CVE-2011-4136 When using memory-based sessions and caching, Django sessions are stored directly in the root namespace of the cache. When user data is stored in the same cache, a remote user may take over a session. - CVE-2011-4137, CVE-2011-4138 Django
    last seen2020-03-17
    modified2011-10-31
    plugin id56671
    published2011-10-31
    reporterThis script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/56671
    titleDebian DSA-2332-1 : python-django - several issues
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-1297-1.NASL
    descriptionPall McMillan discovered that Django used the root namespace when storing cached session data. A remote attacker could exploit this to modify sessions. (CVE-2011-4136) Paul McMillan discovered that Django would not timeout on arbitrary URLs when the application used URLFields. This could be exploited by a remote attacker to cause a denial of service via resource exhaustion. (CVE-2011-4137) Paul McMillan discovered that while Django would check the validity of a URL via a HEAD request, it would instead use a GET request for the target of a redirect. This could potentially be used to trigger arbitrary GET requests via a crafted Location header. (CVE-2011-4138) It was discovered that Django would sometimes use a request
    last seen2020-06-01
    modified2020-06-02
    plugin id57061
    published2011-12-09
    reporterUbuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/57061
    titleUbuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : python-django vulnerabilities (USN-1297-1)