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Zero Day Initiative Advisory 10-123

Zero Day Initiative Advisory 10-123
Posted Jul 14, 2010
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 10-123 - This vulnerability allows remote attackers to bypass authentication on vulnerable installations of Oracle Secure Backup. The specific flaw exists within the register globals emulation layer which allows attackers to specify values for arbitrary program variables. When specific parameters are specified via the URI it is possible for an attacker to bypass the authentication mechanism and reach functionality otherwise inaccessible without proper credentials. This can be leveraged by remote attackers to trigger what were post-auth vulnerabilities without valid credentials.

tags | advisory, remote, arbitrary, vulnerability
MD5 | 9323dc9a2b88fde9db06f8b5acf5aecd

Zero Day Initiative Advisory 10-123

Change Mirror Download
ZDI-10-123: Oracle Secure Backup Administration Authentication Bypass Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-123
July 13, 2010

-- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- Affected Vendors:
Oracle

-- Affected Products:
Oracle Secure Backup

-- Vulnerability Details:
This vulnerability allows remote attackers to bypass authentication on
vulnerable installations of Oracle Secure Backup.

The specific flaw exists within the register globals emulation layer
which allows attackers to specify values for arbitrary program
variables. When specific parameters are specified via the URI it is
possible for an attacker to bypass the authentication mechanism and
reach functionality otherwise inaccessible without proper credentials.
This can be leveraged by remote attackers to trigger what were post-auth
vulnerabilities without valid credentials.

-- Vendor Response:
Oracle has issued an update to correct this vulnerability. More
details can be found at:

http://www.oracle.com/technology/deploy/security/critical-patch-updates/cpujul2010.html

-- Disclosure Timeline:
2009-10-28 - Vulnerability reported to vendor
2010-07-13 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
* rgod

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:

http://twitter.com/thezdi
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