| Name |
Redirect Access to Libraries |
|
| Likelyhood of attack |
Typical severity |
| High |
Very High |
|
| Summary |
An adversary exploits a weakness in the way an application searches for external libraries to manipulate the execution flow to point to an adversary supplied library or code base. This pattern of attack allows the adversary to compromise the application or server via the execution of unauthorized code. An application typically makes calls to functions that are a part of libraries external to the application. These libraries may be part of the operating system or they may be third party libraries. If an adversary can redirect an application's attempts to access these libraries to other libraries that the adversary supplies, the adversary will be able to force the targeted application to execute arbitrary code. This is especially dangerous if the targeted application has enhanced privileges. Access can be redirected through a number of techniques, including the use of symbolic links, search path modification, and relative path manipulation. |
| Prerequisites |
The target must utilize external libraries and must fail to verify the integrity of these libraries before using them. |
| Solutions | Implementation: Restrict the permission to modify the entries in the configuration file. Implementation: Check the integrity of the dynamically linked libraries before use them. Implementation: Use obfuscation and other techniques to prevent reverse engineering the libraries. |
| Related Weaknesses |
|
CWE ID
|
Description
|
| CWE-706 |
Use of Incorrectly-Resolved Name or Reference |
|
| Related CAPECS |
|
CAPEC ID
|
Description
|
| CAPEC-154 |
An adversary deceives an application or user and convinces them to request a resource from an unintended location. By spoofing the location, the adversary can cause an alternate resource to be used, often one that the adversary controls and can be used to help them achieve their malicious goals. |
|
| Taxonomy: ATTACK |
|
Entry ID
|
Entry Name
|
| 1574.006 |
Hijack Execution Flow:LD_PRELOAD |
|