The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
High
I
There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability
High
A
There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
ZDI-08-021: Adobe Flash Player DeclareFunction2 Invalid Object Use
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-021
April 8, 2008
-- CVE ID:
CVE-2007-6019
-- Affected Vendors:
Adobe
-- Affected Products:
Adobe Flash Player
-- Vulnerability Details:
This vulnerability allows remote attackers to execute code on vulnerable
installations of Adobe's Flash Player. User interaction is required in
that a user must visit a malicious web site.
The specific flaw exists when the Flash player attempts to access
embedded Actionscript objects that have not been properly instantiated.
In order for exploitation to occur, an attacker would have to modify a
DeclareFunction2 Actionscript tag within an SWF file. Exploitation of
this vulnerability can result in arbitrary code execution under the
context of the currently logged in user.
-- Vendor Response:
Adobe has issued an update to correct this vulnerability. More
details can be found at:
http://www.adobe.com/support/security/bulletins/apsb08-11.html
-- Disclosure Timeline:
2008-02-07 - Vulnerability reported to vendor
2008-04-08 - Coordinated public release of advisory
-- Credit:
This vulnerability was discovered by:
* Javier Vicente Vallejo
* Shane Macaulay CanSecWest 2007 PWN2OWN Winner
-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
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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
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used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
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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/
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