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TITLE:
OpenStack Nova EC2 RegisterImage Action Directory Traversal
Vulnerabilities

SECUNIA ADVISORY ID:
SA47254

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47254/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47254

RELEASE DATE:
2011-12-14

DISCUSS ADVISORY:
http://secunia.com/advisories/47254/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/47254/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=47254

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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Two vulnerabilities have been reported in OpenStack Compute (Nova),
which can be exploited by malicious users to compromise a vulnerable
system.

1) The application does not properly sanitise image file names in EC2
image manifests when handling the EC2 RegisterImage action, which can
be exploited to create files outside the intended directories via
directory traversal attacks.

2) The application does not properly sanitise file names contained in
EC2 image tarfiles when handling the EC2 RegisterImage action, which
can be exploited to create files outside the intended directories via
directory traversal attacks.

Successful exploitation requires access to the EC2 API and the
S3/RegisterImage action.

The vulnerabilities are reported in version 2011.3 and prior. Other
versions may also be affected.

SOLUTION:
Fixed in the GIT repository.

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

PROVIDED AND/OR DISCOVERED BY:
David Black

ORIGINAL ADVISORY:
OSSA 2011-001:
https://lists.launchpad.net/openstack/msg06105.html

https://bugs.launchpad.net/nova/+bug/885167
https://bugs.launchpad.net/nova/+bug/894755

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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