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TITLE:
Django Cross-Site Scripting and Two Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA50021

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50021/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50021

RELEASE DATE:
2012-07-31

DISCUSS ADVISORY:
http://secunia.com/advisories/50021/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Criticality Level
 * Impact
 * Where
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 * CVE Reference(s)

http://secunia.com/advisories/50021/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=50021

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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Two security issues and a vulnerability have been reported in Django,
which can be exploited by malicious people to conduct cross-site
scripting attacks and cause a DoS (Denial of Service).

1) Input passed to the redirection functionality of the login() or
logout() views within the authentication framework is not properly
sanitised before being returned to the user after redirection to a
"data:" scheme URL. This can be exploited to execute arbitrary HTML
and script code in a user's browser session in context of an affected
site.

2) An error within the validation of images in the ImageField class
when handling the decompression of images can be exploited to consume
memory resources.

3) An error within the calculation of image dimensions in the
ImageFile class can be exploited to consume server resources and
potentially cause the application to stop responding.

The security issues and the vulnerability are reported in versions
1.3 and 1.4. Other versions may also be affected.

SOLUTION:
Apply patches or update to versions 1.3.2 or 1.4.1.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) An anonymous person
2) A user within a bug report
3) Jeroen Dekkers

ORIGINAL ADVISORY:
https://www.djangoproject.com/weblog/2012/jul/30/security-releases-issued/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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private users keeping their systems up to date against the latest
vulnerabilities.

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